If you do you are part of a growing number of people who exercise ethical choices when spending their money. As we live in a capitalist society using your spending power to change the world is actually a pretty good long term strategy, so good on you.
But I have to ask do you also make ethical choices with your investments and your pension? Often it's something people don't give a second thought, but the investments you make can have a significant ethical under current if you so desire.
When I run through a client's information with them as part of my advice process, I always ask 'Do you have any religious or ethical requirements of your investment?' the vast majority of people reply no. I'm quite interested in ethical investing on a personal level but it is certainly not for me to push my beliefs on to a client - but I think it is fare enough to talk about them in a blog post!