Adjunct pay is horrible. The day I started teaching I was topped out since Mechanical Engineering professors are hard to find and retain. Between prepping for lectures, grading homework/tests/labs, holding office hours, and just setting aside time to commute to the University, the pay works out to be a little better than minimum wage. You really have to treat it as something you are doing as a public servant - if it were about the money I'd just work longer hours at my daytime job. It's hard to find qualified folks that are willing to commit to it.
I hated it at first, but it had nothing to do with the pay. I expected the students to want to learn. I wanted to share my experience so they'd be better prepared to rock the industry. This was naive, of course... But some students are motivated. Most don't read their books, play on their iPhones during lecture, and won't see important notes if it's not explicitly stated in bold on a PowerPoint.
The whole experience has been eye opening, but perhaps the saddest fact of all is the lack of incentive to pursue a terminal degree. The country needs rocket scientists and nerds to teach them. My pay is lackluster, but if I had a PhD, I'd get a whopping $200 extra per semester. Why bother? What's the incentive? There are very few jobs outside of education that command that kind of credential, but as a society, I feel like we need to continue to inspire folks to obtain the knowledge.