Rob Stiff and Magic Makers Inc

There's a lot of ranting going on on the internet about how Magic Makers Inc are plainly ripping off other peoples ideas and effects and selling cheaper versions.

http://www.magicunlimited.com/magic_fakers.htm
http://magia.com.ar/robstiff/

And there's complaints on the forums too. My question is this. How come when its really obvious that these guys are rip off merchants does a guy like Simon Lovell use them to put out DVD's? I've read Simon Lovells books and the one thing that's clear is that Lovell is a stickler for crediting. How can he maintain that crediting is so important when he aligns himself with a company who are stealing in a bigger and grander way?

MW