They'd wouldn't be anything currently without the money. Fergie also had quite a pretty penny to spend, one of the best of all time but he could dish out a hefty fee when he wanted. Prying away players from direct rivals like Cantona. And because of Fergie's success United can bully other teams. Living off the past.
Of course money got Liverpool that modern success! Xabi Alonso, Fernando Torres, Javier Mascherano, Morientes, etc didn't grow up playing street football on Merseyside. I can concede all the pre-Premier League success but even then winning gets you money, money gets you better scouts, better staff, better facilities, better players, and all that get you winning, and winning get you money, and money gets you better scouts, better staff, better facilities, better players, and all that get you winning, and winning get you money, and money ad nuaseum.
The players still have to play, the manager still has to manager, any win is a deserved win. Don't act like any modern team is made up of grassroots locals that have been with the club their entire lives and through blood, sweat, and tears win it all. It's the ultimate hypocrisy. If Liverpool had won the league with a bunch of local lads the Club had nurtured from youth into winners, then I'd say it was deserved in the manner you are describing.