Wrestlers just don't care anymore

CM Punk said this in his second shooting promo in 2013 and he said it too in his podcast , superstars are just there for the money they don't care about their characters anymore , they don't have the same fire as their 90's counterparts had , for exemple Dean Ambrose , he was on fire after the shield break up and during his feud with Rollins , i thought for sure the guy gonna be a world champ in 2015 but after the feud ended , he was stuck in the midcard , he has the potentiel to be one of the best heels of all times but he don't care because he's getting paid load of money and just keep pretending to be the kid friendly "crazy" guy , Punk said that Bryan was serious wrestler but he is forced to put a smile on his face and be friendly the kids which hurt his character , i don't know why Wrestlers don't care improving their characters and being in the big league , maybe because they know that those roles are already reserved for the childrens of Ric flair and Rock's cousins ? or is just the PG era ?