...than what? And what the heck is a "butchers?"
DMs and I get along fine. I don't take them on my boat, and we all get along fine.
I don't want to be watched, studied, protected, or informed. I can do that on my own, thank you very much.
DM's belong back on the dock, making the coffee. Give me a capable boat captain and a couple of good dive team members, and I'm perfectly happy. I don't put up with DM attitudes well, I don't need a lackey, and I certainly am not going to pay for whatever service they think they're offering.
As far as I'm concerned, if they feel that they deserve a place on my boat, I'm willing to oblige - when they pay me just like any other passenger, I'll consider taking them out.
"Tip" them? Are you kidding?
DMs are nothing more than dive industry leeches looking to suck money out of divers while they dive. Think about how nice that would be - to dive and get paid for it. That's exactly what they're doing, no more and no less.
Get a real job and pay for your diving instead of trying to freeload on some dummy who doesn't know any better. Parasite.