Relative to whom? What the OP is saying is that champions who deal "too little damage" are doing so in an environment that is largely oversaturated with damage. Buffing their damage only risks contributing to that larger problem in the long-term, and could end up making the champion less healthy as well. If there is a specific bar that champion is meant to reach in order to have good damage output, and they're not reaching it, then for sure they deserve a buff, but the OP along with others would prefer it if the competition had their damage brought down first, so that Riot wouldn't feel pressured into giving everyone too much damage just to keep up.