moral

Who determines moral values? What I consider valuable and proper may not be valuable and proper in someone else's opinion. In my opinion, it is not appropriate to vote for a party whose leader is a criminal. According to many other people, I assume that quite a few of them are people of value and morality, and it is appropriate to vote for that party. Is there a single, objective standard by which one can determine what is moral and proper? And who said that I am right and not the other? Is there anyone who is more or less right in morality? Let's say there was no halakhic prohibition against stealing, so they asked me if I would steal money from someone, so I said of course not. Then they told me if the richest person in the world lost 10,000 shekels and you had the option of taking it for yourself or returning it to me, what would you do? So I said I would take it for myself. He would never know about it, and even if he did, it wouldn't bother him. So is it because I think I shouldn't pay him back that I am less moral than someone who would pay him back?