But if it bothers you cosmetically, Google rim repair shops in your neighborhood. I have a few that are local around me. One of them is pretty reputable, mostly repairs rims for dealerships but will take on repairs for anyone.
Sorry I know this is ancient but the responses you got were dumb.
It's a steel wheel get a hammer and tap it straight again
Or get a 2x4 place it on the bend and hammer it straight
Or
Dismount the tire and get a crescent wrench and pinch just the lip of the wheel and pull outward till straight.
Really not that bad of a ding, but from the looks of it, the wheel is a pro-comp style and they are pretty cheep to replace $60 range if you can't get it hammered out.