I'd normally avoid correcting spelling, but these ones were confusing until I realized what you were trying to say. "I always thought that when heroes fought and threw things and people through walls it was an extra strong emphasis (I think?) of how strong they were." English is a stupid language.

Though walls aren't quite that easy to go through. Drywall is brittle enough to punch a hole through (though it probably won't be a clean hole), but there's still the frame and a second layer of drywall (for an interior wall, even more to go through if it's exterior) you'd need to go through for most north American walls. Movies will use prop walls, I'm guessing designed for that specific crash through them (like with a specific shape precut so it just tears away as desired when whatever passes through it) and extra effects like dust and debris added in post or thrown in from outside the frame.