I can't find anything about it (and I'm not going to go looking too far all over the internet for it) but I seem to remember watching a video interview in which he said something about him starting the wrestling organization for his brother, saying something along the lines of: My brother has always loved wrestling. I love it, too. I had the opportunity so I did it.
Now, I've not been a fan of Corgan or his narcissistic, egomaniacal ways but that seems pretty decent to me.
Here's a link to a Huff Post interview with Billy. http://www.huffingtonpost.com/lauren...b_1687141.html
It doesn't echo the same story as the stuff I typed just above, but it doesn't really say that stuff is wrong, either. I left that stuff in in case somebody is interested and wants to corroborate or disprove it.