Corporate volunteerism isn't just for the already convinced hardcore believers. A truly effective volunteer program must be interesting enough to win over the most hardened cynic in the workplace. If self-interest is the initial motivation, so be it. It likely won't be for long.
illennials understand the benefits of a balanced life, personal growth and being productive. They tend to like their jobs more than previous generations and stay in jobs that fit their talents and passions, but they won't stay in jobs just for security.