Do you also object to people paying money to have other people's art in their homes? Is the moral damage from getting an artwork in your home that you didn't create inversely proportional to your monetary investment?
I notice you say "something" and not "someone". With humans, contribution varies. I could commission a piece and have a great deal of input on the final result, or I could just have exercised judgement to choose the piece. Many people descibe their clothing choices or home decor choices as "creative" or "creative expression".