It's a two paragraph blog, what do you think it's going to do?
1. It could be a symptom of the fact that it's really really difficult to imagine how people can be passionate about something you find mindnumbing. I'm sure there are plenty of people who don't understand how someone can be passionate about programming. It's obviously very boring.
2. There's a distinction between a 'job' and a 'career'. Jobs are more about menial tasks that can be done by anyone, not passion fodder. Careers are more about personal growth, fulfillment in life and doing something for motives other than purely financial - great passion fodder.
Different people are different. There is no such thing as "universally shitty" about jobs. Jobs are jobs and different people have different motivations about them. Luckily, the free market does not give you any right to try to stop or judge these jobs which you claim are "universally shitty".
I would suggest reading the book 'First break all the Rules'. Dan Pink also gave an insightful talk on motivations. You could find it here. http://www.ted.com/talks/dan_pink_on_motivation.html.
As entrepreneurs, I think we overestimate the amount of people that look to their jobs as a way to reach fulfillment in their lives. Many people just see their job as a way to pay the mortgage, feed the family, or as a way to fund their hobbies and passions.
I always struggle to believe that all jobs could find passionate people. For businesses of a sizable scale, can you really find 10,000 passionate insurance adjusters or tax auditors. They may be good at their jobs, and they make care about the quality of work and their professionalism, but are they truly passionate about it?
If the whole world wanted to be passionate about their jobs, most of the mundane services we need to operate as a society would probably fall apart.