No more contemptable than "I'm smarter than you are because I get stoned all the time and make six figures."
On the contrary, he was talking about himself and his accomplishments. Normal, healthy people are happy for the fortunes of others, but you see them as an implied put-down of you. Like a liberal, you seek to build yourself up, by tearing others down. But, that only creates rubble. Very un-Christian.
You, however, talked about him and his dogs "I'm sure they will miss you when you're gone," as if no other soul cared one whit about him. That's a also very un-Christian thing to say to another, since you say you are a Christian.
I'm sure the fact he does what he does while getting stoned all the time wounds you deeply, it certainly causes you cognitive dissonance about your "drugs are bad" axioms, but that doesn't excuse your childish insults.
Incidentally, you never responded to my post that drugged-driving negligent homicide doesn't make pot malum in se any more than drunk driving negligent homicide makes alcohol malum in se. Probably because you can't respond.