I don't think it is anyone's business to judge what rings you wear on what finger for whatever reason. If it doesn't bother you to wear on the left hand, then wear it on the left hand. Don't worry what others think!
I don't think it's a matter of "judging". But if the OP wears a wedding ring and band on the finger traditionally used for wedding rings, many people will presume, at first, that she is married.
If this doesn't bother her, no harm - but if she gets tired of answering questions about her (non-existent) spouse, or finds it hard to get dates with eligible bachelors, she can't complain, because she has given symbolic communication that she is, indeed, married.
This is not a judgment, it is a matter of social communication.