As if stealing others people work is charity right? Of course it's all for the money, the money they got using other people's work without permission.

Yes, two generations, as I said, the people may have not know about the song… or songs. Another reason can be that the affected one can just dream of having the money to run a lawsuit against a very famous band.

It's not a rare thing at all, it's what happens usually, nobody sues day 1. Artists may have not heard the song or they rather prepare and look consult a lawyer before taking actions.