So he's an inch tall and can lift 200 pounds. Impressive, but I'm not sure how you make a story about it.
Apparently, it has been stated by both Edgar Wright and Kevin Feige that this will be very much a "heist film."
With as small as Pym can shrink he would be a prime candidate for espionage.
I can get on board with that, seeing as how Captain America: Winter Soldier is being sold as a "political thriller" and the trailers so far have shown just that.
Ant-Man is really Marvel's, Aquaman in terms of public perception; although Aquaman is by far more badass.