"We invest in people through community action."
Interior scream "no!" when I read it.
Working with what's here, I'd change it to We ensure community action by investing in people (to bring it about.)
Of course, the statement is in need of a clear definition of the term, community action. Nonetheless, seems to me that the definition of success here, aka the end result, is action in the community brought about by the people in whom the organization invests, not just the business of investing in them. One could invest in folks 'til the cows come home, but if there is no payoff at a community level, what's the point? Or change the mission statement...