That seems to be a field where you'd want to be careful who you're working for. People go to work to make money, but find themselves contributing to all sorts of things they don't necessarily believe in. That's evident in advertising, and goes deeper into corners with CS. You could be doing great things... or not.
But a job is your choice, and leaving when you're not comfortable is also a choice.
The degree is a hard one, but there are less intense options. Schools are adding programs combining fields of study with less tech-- focusing on sustainability, human risk factors, user interface, community planning (not specifically CS/IT -- just giving examples).
In CS, you would be creating solutions, and saving people time and headaches. And getting paid more! But whether the solutions are really needed, would be a case-by-case analysis.
And as said above, there are jobs like helping underprivileged villages set up MS labs and training. Providing underemployed with office software training (you could probably do that now. Or get into instructional design).
If you haven't already been through some college, you might look into the short training programs that lead more quickly to jobs -- some high-tech industries are looking for technicians at the hands-on level, to support research and advanced levels of manufacturing. (Laser scientists needing people to operate and maintain... optical scientists needing technicians... hospitals needing med technicians...).
If you take accredited programs (vs. trade), then many of your credits can apply toward your next phases of studies.
I say this because the economy might make it difficult to get through 4-5 years of expensive schooling right now. It's so nice that you are looking for something with more meaning, using the years you've been given to do something for humanity.
