In "Becoming Steve Jobs", Tim Cook says the following in regards to Apple's collusion scandal: "I know where Steve's head was. He wasn't doing anything to hold down salaries; it never came up. He had a simple objective: if we were working together on something, like with Intel, where we threw everything in the middle of the table and said, 'let's convert the Mac to the Intel processor', well, when we did that, we did…
Wow. That's... ballsy.
Sure, holding down salaries might not have been the primary motivation.
Doesn't change the fact that collusive no-hire agreements hold down salaries, and Cook and Jobs are smart enough to know this.