CR10- It seems that you are disscussing 2 issues. In your discussion about judging others, you are correct, we aren’t permitted to do that.
In your discussion about better/superior vs. worse/inferior, someone who chooses to be an Eved Hashem is clearly better than someone who does not. Chazal tell us that we have the ability to choose, but we don’t have PERMISSION to choose. Hashem tells us what choice to make. Check out Parshas Nitzavim (Devorim 30:19). Hashem says, “I have placed life & death before you…CHOOSE LIFE.” Life means a life of serving Hashem. We are told what is right & what is wrong, and certainly right is better than wrong, and certainly someone who chooses right is better than, superior to, someone who chooses wrong. When you observe someone who is not keeping the commandments, you come to the conclusion (i.e. you judge him) to be wrong, & therefore inferior to someone who is doing what is right.