Which policy of the Church caused humanity greater harm - its position on interest, or the Inquisition?

in my opinion it is there stand on contraception that does the most harm, they are denying millions of couples the opertunity to plan for much loved and wanted children,m instead people have children they don't really want, and sometimes neglecting them. Others are using abortion as a form of contraceptive in the mistaken belief that one sin every now and then is better than sinning daily, by using contraception. It's past time the church changed it stand on this issue