There's virtually no way you can "fix" those in a home environment. Once that thin Ti is creased, it doesn't come out. You can flatten it, pop out the big dents, even put it on a shaped anvil and try to reform it, but it'll never be smooth again. The wrinkle will always show.
Doesn't affect sound? Probably not that much, but it is a factor in performance. Of course, seeing can be believing, and once I replace by slightly crinkled 095Ti diaphragm, I swear it sounded better.