There's really three distinct issues with owning a low quality vehicle:
First is the actual safety of having an unreliable vehicle. This can be either remote areas or breaking down in less safe urban areas. In urban areas in the untied states, this isn't very likely. If you drive down to the Baja - yes this can be an issue. If you want to go to Panama, more likely. And if you drive around Africa - very likely in certain places.
Being in remote areas is only for those of us in the west. There's nowhere east that you can't walk to some highway in a few hours. In the west people actually do die in broke down or stuck cars every year. Usually it's a series of poor choices that lead up to the ultimate demise, however there are plenty of places out here that have less than 1 vehicle per week travel the roads. You break down, you're in for a very long walk or hoping someone knows where you are. We usually go out for a week at a time once or twice a year to the most remote places we can here and at a minimum bring a mountain bike. Walking out isn't even a consideration if it's 70 or 100 miles. It's not only poor quality electronics that disable vehicles. These areas also test the durability of the hardware. I've seen cherokee's with punctured gas tanks, I've broken u-joints, axle shafts, differentials, steering knuckles, steering arms, and all sorts of other mechanical parts. Toyota's break too. If you're not going to places where you're at risk of snapping axles, you're not talking about the same trails I am. And if you're not going to the more difficult places, then the concern isn't as significant.
Ultimately in both cases of danger it's a question of probability of failure combined with consequence of failure and balancing that against the value to the individual owning a LR over say a Land Cruiser.
The second issue with low quality manufacturing is durability in general. I think this is the most important as it's the actual day to day PITA of having to deal with repairs. In the Serengeti there is almost 100% cell phone coverage. Yet you almost never see a Land Rover. Why? Because they don't hold up well to the environment there. Wheel bearings, broken springs, you name it, it breaks, even on Land Cruisers. Our local guide said that they had bought a few LR's about 5 years ago and they scrapped them after 2 years because they couldn't keep them going. Of course this is an extreme example, but it's pretty true in the west as well. My in law's ranch requires about 10 miles of dirt/gravel that is maintained once or twice a year. Bombing down washboard like that every day destroys cars. I remember one night her parent's for Explorer's front hub assembly literally fell off. It was 3 years old. Bearings in the dirt. And there's no cell signal. So while it might not be dangerous, it's a huge PITA to have to replace door panels that fall off, wheel bearings, ball joints, etc every few years. The durability issue is more of a headache and operating cost issue than safety, but it's very real and much more applicable to most drivers and more applicable again to rural life. It's also why I'll never own another chevy truck. Our shop truck has been nothing but repairs since new. With 80k miles it's had a transfer case, transmission, front differential, all fail. The interior is falling apart. It's had a bunch of electrical issues like crank position sensor (huge PITA because some dipshit engineer decided it would be better to put it in the bell housing than on the front harmonic dampener like everyone else in the world), transmission shift sensor, and a few others. Tows like a freight train, but it's just not worth he hassle.
The third is resale. Low quality vehicles have low resale and are in turn more expensive to own. This is probably the most important as it applies to every owner. A car with a shorter useable lifespan is going to have a significant reduction is value over the same period of ownership as one that has a longer expected lifespan.
In the end, most LR owners and most 4runner owners rarely venture off the asphalt. IIRC Subaru Outbacks are the most likely vehicle to actually go off road, but I do see quite a few Tacomas, wranglers, and 4runners. I've never seen a LR off road in the states other than a few around the slickrock area in Moab. I've passed H1's, scouts, pinzgaours, unimogs, even some rare stuff like an FJ45 Troopy in many years as the trail master of a large offroad club in Montana, but never an LR. So the only thing I can really say from personal experience is that I've never seen one break down other than in the once in Kenya where we did see a D110 billowing black smoke on the side of the road. Could be the most reliable vehicle in the world.