I've seen situations where the company got $950K of a $1.2 million contract simply for negotiating the contract with the client, while the dev who did 6 months of work got the other $250K. $250K for 6 months work is a lot, but $950K for 2 weeks work + occasional maintenance of the business relationship is a lot more.
Of course, I've also seen the flipside: I worked at a company where the CEO was salaried less than me and his share in the company wasn't likely to grow in value such that his compensation vastly outstripped mine. I've been paid more at other places, but nobody complained about compensation there.
It would serve them better if they can treat themselves as product and services providers in a free market. Band together and unite! Don't stab each other in the back for meager bones being thrown at you.