Finding success in business, ethically

There is a growing movement in the world of finance and advocacy, arguing that making money and doing good don't have to be mutually exclusive.

What makes an investment ethical? How do you ensure the companies you're investing in actually do what they say? And how much might you need to participate in this growing marketplace?

And can work ever be entirely based on competence? And why do some people get to fail and succeed while others don't?