I think if I were an action hero, I'd be a superhero.
I've thought about this long and hard, actually.
In my mid-twenties, I was kidnapped and after about 6 months of lost time, returned home, seemingly unscathed and healthy. But then weird stuff starts happening. My bones and muscles begin to ache, rendering me bed-ridden. Then my hair begins to fall out. Body scans show that there is some new growth going on in my back. I'm growing wings. Blood tests are done, and sure enough, my DNA has been drastically altered. As far as the best doctors can tell, my bones are decreasing in density, but altering their structure so as to be even stronger than before (like aerogel!). My muscles are changing too, to get the maximum strength from the minimum weight.
A biotech company contacts me, wishing to study me and assist me. They offer me lots of money. I accept, cause I like money.
Then the wings begin to grow in earnest. Also, all the hair that's fallen out is replaced with feathers. Proper feathers on the wings, but a kind of long down feather where I'd had hair - very cool looking.
It becomes obvious to my somewhat enhanced intellect that the company now studying me was the same group that kidnapped me and did this to me in the first place. I sue them, but we settle out of court for enough cash to keep me extremely comfortable for as long as there is such a thing as a high interest savings account. Included in the settlement is the stipulation that they must do to my wife what they did to me, so that we can be like each other, and so that our kids will be birdmen too. (We're starting a new race here!)
So, I'd be independantly wealthy, and I'd write novels and movies and all kinds of cool stuff. And I'd fight "the crime" on the side.