The real reason why I suggest changes like these, is that now there is almost nothing depending on player's skill. If you have more people = you'll win.
It's called math, the greek made it up. 5% = 5/100 = 1/20.I'm not saying that one would die after every 20th drug and only then, but only that 1 in 20 drugs is potentally leathal.
This just makes the game more divided on those that can be godlike (with a gang, ton of drugs and a haven) and those who can't (casual players).