I just think that sometimes we see "Janitor" and think that it's automatically bad. Too often, we don't even scratch the surface or know the whole story.
And (honestly not joking), Good Will Hunting is a great movie.
You are free to read to your hearts content, and get paid to do so.
The first thing I did was make a reading list. I re-read most of the Western Canon and a lot of other non-fiction books I wanted to read. The school also had a computer lab with Macs and even a few Linux boxen, and during the winter when I was snowed in I spent many nights learning PHP, Python, and MySQL. It ended up being one of the most productive learning periods of my life.
Some people, sometimes, probably. Me, most of the time, no. Currently I'd be rather happy if I were a janitor. Easy going job, lot's of time to think about neat stuff, no major stress and stable income. Or at least that's how I think it would be, reality might differ.