A character must have attributes that fulfill one of two requirements.
1. Show people the attributes they share and can relate to.
2. Show people the attributes they are glad not to have at all.
Fulfilling both is almost impossible sometimes. It's just hard to keep them both well depicted without being boring. It's hard to make something that isn't boring. I would know, I'm bored all the time.
Sometimes you get an episode you just can't shake though not from lack of trying (but usually it is). You have to rely on some product of the world around you - to shake you from your sitting position behind the grease smudged glass (not drugs usually). And it's different for everybody. This ensures two things:
1. Everyone has that special something to peak their individual interests - nice
2. No creative endeavors will become popular - less so

I think tomorrow I'll be an IT professional. Or a chef.