CR10,
I think you may be confusing the idea of judging a person’s worth with judging behaviors and actions. Only G-d can do the former, but G-d commmands us to do the latter.
The problem is that if I don’t have a TV and you do, I may feel superior to you. And if you are a learner and I’m not, you may feel superior to me.
So should we all get TVs and stop learning so that nobody feels inferior? This is not kindergarten. Religious observance seems to be a touchy subject, so let’s remove it from the equation. Billy is a better piano player than Bob, and Bob can draw better than Billy. Is Billy a better person than Bob, or Bob a better person than Billy? We don’t know, but if Joe wants to become a better artist, he should learn piano from Billy and drawing from Bob, not vice versa.
The point is not to feel superior to any other Jew even if we keep more mitzvot
The point of humility is not to think that we’re equal to everyone else, because we’re not. The point is to realize that our talents and opportunities come from Hashem, not from ourselves.