Yes. I did about 60 hours of unsolicited work on the side to try and improve the org and my manager (who is excellent) worked to arrange that I receive a special bonus to recognize my efforts. And they wrote me a really nice letter to go with it.
Every two or three years I muster the energy to try to initiate some really big side effort to improve the profitability or effectiveness of whatever company I am working for. In 20 years of professional work, this is the first time I got recognized. There are a lot of useless managers at Nike, but mine isn't one of them. And all that effort would have been wasted if it wasn't for my manager encouraging me all along the way, and the recognition afterwards was much appreciated.