I'd leave them in. Most good companies & even corporations like to hire people who have some 'public service' or 'charity' in their backgrounds. It tells them you care about something other than just yourself & you know how to talk to people. Plus it looks good when they decide to do some charity that you know what you are doing and aren't going to behave like a spoiled brat who doesn't wish to get involved in helping out.
And if you can deliver the keynote address at some internal ceremony .... whoo hoo ... they really love you.
I've done it and have gotten every last job I applied for.