Every member of the stones was either on Heroin, Cocaine, hard liquor or all of the above. It’s only now they’ve been clean for the past decade. Whilst each of them spent quite a lot of their personal funds on drugs the main issue is that no one would give them large sums of money to make a movie or anything because they thought they’d be branded as “the one that work with those druggies”. In the Beatles case there was less talk about johns heroin habit and the rest of them weren’t addicted to anything but cigarettes so it was more acceptable to give them money. I’m not say the stones were always penniless but they weren’t pop superstars like the Beatles