Yes, Ayn Rand isn't a good tale, but I thought she would resonate with a few people here.
Churchill a better example, and many other great people.
Simple fact is I use less drugs than most people I know, less than yearly, and that includes alcohol (yes, I am teetotal)... so your point about 'damaged brain cells' as a personal attack might be better directed at the many who drink very regularly.
I dont condone drug use/heavy drug use either. I just feel it should be a matter of personal responsibility.