Like with all drugs, the user's sober state of mind determines the drug high. What I mean by that is you don't become a narcissist on coke unless you already were one before. It's not a coke problem, it's a them problem to begin with. I've seen coke make people extremely empathetic and kind. If the guy turns into a raging god complex, it's because he already was.

This is why I hate people who overly focus on drugs though. You have a jewish guy in a position of authority but instead of thinking he's a bad person because he's jewish, they'll blame the drug. Oh, if only he didn't do cocaine then he'd have been a nice guy. Hell no. His morality was already baked into his genetics. His drug use was irrelevant. He was always going to be a bad person regardless of the cocaine.

Using drugs as a scapegoat for poor behavior leads to people missing the underlying truth. He's a bad guy because he's jewish. Because his genetics already laid out the framework for him to be a bad guy. The cocaine had little to do with it.