Derek Sivers donates all the income from books sold on his website to charity. But regular creators don't have an easy way to donate their income to charity. Why would regular creators want it? - donating to charity is good - saying "100% of the proceeds will go to charity" can increase sales - more importantly, it's a great way to build an email list of serious buyers who may buy other stuff from them
Transaction fees (stripe fees + x%) - can be tricky though