corrupt, pervert, subvert, demoralize, demoralise, debauch, debase, profane, vitiate, deprave, misdirect -- (corrupt morally or by intemperance or sensuality; "debauch the young people with wine and women"; "Socrates was accused of corrupting young men"; "Do school counselors subvert young children?"; "corrupt the morals")
bribe, corrupt, buy, grease one's palms -- (make illegal payments to in exchange for favors or influence; "This judge can be bought")
defile, sully, corrupt, taint, cloud -- (place under suspicion or cast doubt upon; "sully someone's reputation")