Big banks and bank stocks, like Citigroup, don't always conjure up the most warn-and-fuzzy feelings for investors, but does that mean people shouldn't own them?

In this segment of The Motley Fool's everything-financial show, Where the Money Is, analysts David Hanson and Matt Koppenheffer discuss owning shares of companies that some people deem unethical and how it can keep some investors up at night.

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.