He was a dude blessed with great genetics and low self-esteem. Combine them with a few guys who tell him what he's always wanted to hear, provided him with drugs so long as he does what they say. It's gonna be like hitting the lottery.
Every time you pull that lever at the slot machine (follow instructions), money pours out. You never see an end... But human bodies aren't machines, we break down. After 20yrs of pulling that slot machine handle and winning, all of a sudden you're not only not winning, you're losing (in life, no matter situation... Financial, health, family, etc..) it's hard to deal with for someone who's always come out on top