We are not to criticize their lifestyle but we can point out where they are in the wrong and how that money could have been better used to edify others in the body as we are told/commanded to do as we are told to esteem others before ourselves.
We also should be careful of defending people who live such lifestyles and test them as we are called to do in the Word of God, as the Lord our God gives many warnings about falling into the snare of greed, rich, and lavish lifestyles.
We should never as Christians (followers of Christ) ignore His many warnings in the scriptures !!!
God bless