It's one thing to take advantage of the situation and other to take advantage of the people in the situation. I have two guys that make $15/hour and they are beyond tickled to death about it, both high school diplomas, but both know the industry. I have 2 part time college students who make $10/hour and the both think they are entitled to more because they are working on a horticulture degree.
Sometime you have to do what you have to do in order to provide, you may not like it, but it is respectable. I'd rather be digging ditches for $7/hour than standing in line for a check if that was the situation.