I came across this on kottke.org the other day:

As a creative person, you’ve been given the ability to build things from nothing by way of hard work over long periods of time. Creation is a deeply personal and rewarding activity, which means that your Work should also be deeply personal and rewarding. If it’s not, then something is amiss.

Your muse can only be treated as the secretary of a subcommittee for so long before she decides to pack up and look for employment elsewhere. If you aren’t able to own the product and be creative, then you aren’t able to do your work, and if you’re not doing your work then you’re negating a very real part of your personality, which is no good for anyone. No good for you and certainly no good for your employer.

As a musician—especially as a sideman—I think it’s an interesting and relevant point of view.