Sallie Krawcheck on what Wall Street doesn't understand about women—and their money

Wall Street veteran Sallie Krawcheck is making closing the investment gap her mission with digital investment startup Ellevest. And while the pay gap may be in the spotlight right now, Krawcheck warns that the gender investing gap can have an even bigger impact for women over their lifetimes.

"It's important because it's important for our economy and society," says Krawcheck of getting women to invest at the same level as men. "When women are financially stronger, it's not just good for them, it's good for their families, it puts money into the economy, the market — it's good for everyone."

Wall Street has failed to serve women investors, Krawcheck says, noting that many financial institutions have been unsuccessful in their attempts to draw in women.