From Longman Dictionary of Contemporary Englishdo somebody/something a disservicedo somebody/something a disservice (also do a disservice to somebody/something)HARM/BE BAD FOR to do something that gives other people a bad opinion of someone or something The fans have done the game a great disservice. → disservice
Examples from the Corpus
do somebody/something a disservice• The remedial programs we knew about did a disservice to their students by thinking of them as remedial.• The fans' rude behavior has done the game a great disservice.• When Mr Non-Productive Employee gets a raise, it does a disservice to the productive employee.• Such uninformed views do the industry a disservice. 