Now, try to explain to your Chief or supervisor about how awesome Git is.. that is easy and I've done it. Then comes the part where you explain how to use it; The problem is the interface on both the CLI and GUI require a TON of "other" domain knowledge to use effectively. Abstract all that away at the same price point of Github and you will win a HUGE market.
We don't have IT budget to pay anyone to do this... nor buy the extremely expensive solutions that already exist. So we rely on email and ad hoc training to make sure everyone can stay abreast. Now, how many businesses not related to software development could benefit from Git or a similar DVCS?