No, you are incorrect. If you belong to an ORDER (benedictine, Franciscan, etc) you take a vow of poverty and everything you earn goes to support your community. If you are a diocesan priest, you are paid a living wage, and you can buy your own car, etc. They can't own the Church's assets of course, but they have thier own money to do with what they want.
I'm sure they may get food money, but a living wage?
Are you aware that the nuns and priests may still not even be part of the Social Security plan in this country and are in mostly total poverty when they get too old to work?
I've lived in both NY and CA and there have been nothing but used cars being driven and very humble lives lived by my observations.
How much a year is the livable wage you heard they are paid?
I know some have some very expensive educations paid for to head colleges or to serve in special places.