Leeds disallowed goal vs liverpool......if man utd were......?

if man utd were the ones who had benifiited from a referees decision everyone would be saying they paid the refs. but liverpool have gotten lucky with goal and nobody says anything. last season when carrick won the 'penalty' to beat spurs everyone talked about utd. but earlier that day mascherano went down without any contact and liverpool scored the winner from the free kick, nobody talked about that. there are so many cases like this