Architecture?!

So, as many of you know, I've wanted to be an architecture since I was a lil tyke. But, I'm having my second thoughts. It's not that buildings don't fascinate me, but I don't know how much of an impact I can have by building houses. Do we really need more buildings? Why are so many good buildings being torn down to put up townhouses. Why do people feel the need to live in identical boxes filled with identical furniture. Sure, I can design buildings which break away from this tradition.. but, I don't want to make huge buildings.. I want to make efficient and small spaces... which means.. nothing that has any profit. I really love vernacular architecture. I am definitely interested in learning about straw bale architecture. I think I just need to find a very good sustainable architecture firm. A firm that will let me be creative and not just sit at a computer all day designing window treatments.