Have PE takeovers done anything good? Everything I've read about long-term outcomes of PE deals over the years, is they are highly profitable for the investors

Have PE takeovers done anything good? Everything I've read about long-term outcomes of PE deals over the years, is they are highly profitable for the investors and highly shitty for the companies, employees and customers of the companies they take over. And those are the "successful" PE deals. The unsuccessful ones are just shitty for everyone.