Creaivity is enmeshed with experience, but it doesn't seem to really matter whether it is the thrill of exhilerating success or the misery of oppression. Creativity requires forms and experience of things and the embraceent of change to come out at its best.
Misery tends to be easier to notice, because it hangs up the attention more than success does.
But any real experience will do, the spicier the better!