You really do hate people having the freedom to do as they please when it doesn't suit your narrow view of the world? I can only assume this will be your entire argument in this thread, nothing to do whatsoever with his natural personality traits, it must be a fever of the mind from psychoactive substances that have totally taken him over. It must annoy you so greatly that he's in the financial position that he's in, as it clearly doesn't fold neatly into the usual thesis of drugs leading to delinquent criminal lifestyles.
I do hope when inevitably the UK legalises it or decriminalises it (hopefully ironically by the Tories themselves), that you'll continue this unquestioning fury at the world, shaking at the clouds from your dainty pub about how it's just the not the same country anymore.
Regardless of the fantasy, you can't just blame his entire behaviour on drugs, as it doesn't really fit well enough considering his success.