The truth is that processes and policies don’t make a good programmer. Red tape terms like waterfall and agile don’t make a good programmer. A good programmer comes to you, you don’t make a good programmer.
I think this hurts the egos of some people. The fact that the “coach” can only guide, he can’t essentially program the programmer and therefore has to step down off the block he stands on and give credit to someone else. This is especially true with the older baby boomer generation, which is known for being selfish.