hey im looking for J dramas that kinda give off the feel good selflessness type roll and honor, i cant describe what i want well, but j dramas like this: Good luck!! 2003 DOCTORS Saikyou no Meii 2011, love how he goes into the hospital changing it to something better. Dragon Zakura 2005 GTO 1998 JIN i think some of you will get me :P
If you liked DOCTORS Saikyou no Meii, you would absolutely love Doctor X and probably also Iryu Team Medical Dragon. Probably even Godhand Teru.

Bloody Monday got a lot of "heroism" in it.

And for movies, DOGxPOLICE.

These are the only dramas/movies I've watched that matches with your criteria(I think).
Ok, let me see:
Hammer Session!
Yankee Bokou ni Kaeru
Rookies (This one has a movie too)

I really enjoy this kind of Japanese dramas, and the "follow you dreams" kind too! n_n
Perhaps no 2000s dramas describes heroism better than Fumo Chitai. It's 19 episodes but worth watching