Thats so out of context dude! I see your point but being serious... no I wouldn't smash my mate up for money. You know why? Cause we dont fight for a living! If I was a fighter I would. Like I said before, boxers seem to have no trouble. they have that whole, "im on my own" thing going on. They know there's no point becoming close and sparing with the same dude for 8 fecking years! Its bad for business.
I understand your point completely, and when it comes to fighting for titles I hate to see it happen, but I train with some close friends and I'd never fight them for any amount of money or title, so I understand their perspective as well. They are fighters and this is a sport, but if you're willing to go against yourself and fight your friends, you're not doing what you love for yourself.