We see normal people, in the real world, break bricks with their hands... Cap is much stronger than any normal human, so your logic kinda falls apart using that example. smashing a brick wall is completely within the realm of possibility for someone without super strength, but spitting with that much force would require far more than human ability. There's also the extraordinary things he does with small objects; It's very possible to use a playing card to cut someone, but to slice open a person's neck from yards away is definitely a superhuman feat.
I know Bullseye doesn't technically have powers, but we may as well say he does because some of his feats are outlandish.