I promise you both companies have very well defined and strongly worded ethical policies against collusion. Plus, budgets for things like the OP would involve multiple layers of an organization with lots of required sign-off. So if true, this would be damning for all those involved.

As to your other point, I'm sure you're aware that governments and private companies are afforded different rules of engagement. We decided a century ago that allowing companies to collude ended up oppressing markets in negative ways and should not be tolerated. So not sure why you're using one to justify the other.