Among the duties of a priest/minister/pastor/etc is that they should act as role-models for their congregation. They should live what they preach. "Do as I say, not as I do" should not be applicable to them, since the two should be one and the same.

That isn't to say that they must all live in abject poverty (although there are monks who choose that as well, giving up all their worldly goods). Religion does not exclude common sense. However, trips to exotic places and lavish lifestyles are NOT what a pastor/priest/minister's life should be. One of the more important traits that they are supposed to cultivate among their flock is humility.
If the church's coffers are overflowing, that money should be spent on charities, and/or improving the life of the more impoverished parishioners, and/or improving the church's facilities (e.g., maintenance, renovations, etc). That money is NOT for a new car for the priest, or any of that stuff.

People who live that way are just hypocrites, and do not deserve to be in the positions they occupy.

My two cents, naturally.