The comment is not rude, Blue, just a common misconception. Even at the full professor level, a university professor will be paid less than he/she could earn in industry (for those for whom industry is an option: areas like business and engineering). And the ones who are not in an area where there is an industry competitor, the university system pays even less.Really, I thought some teachers don't really care. I thought all they cared about was getting paid. And they get paid A LOT.
EDIT: That's what my teachers said back in high school.
About caring, again it depends on the professor, but the vast majority I have know in my nearly 30 years in the business are just as conscientious about their teaching as they are about their research. For university professors, there are three components to the occupation: Teaching, Research, and Service. The typical breakdown at a research-emphasizing university (in terms of annual evaluation and determination of raises when there is money for them) is around 45% on research, 40% on teaching, and 15% on service. That means someone who doesn't give a damn about teaching is probably not going to get much raise money whenever it is available.
This is another sore subject for professors. The raises given are not regular, but dependent upon annual allotments from the legislature (for state-sponsored universities). And when given, they are rarely even equal to the cost of living increase for the year. I've been losing ground to inflation for more than half of the years of my career. When times are tight, like now, we can expect no raise, and even worry about salary reductions, which can happen, although I've never seen one.
Sorry about all the extras here. Blue, go see your professors when you need help. Introduce yourself in the first week or two of school. You may be surprised. Also realize they are humans like you, with all kinds of personality types. And they are sometimes busy. E-mail is your friend, but nothing substitutes for office visits.