Although being capable of sending a bill is part of the problem, I suspect a bigger problem is getting your bill in front of someone who has the budget, the mandate and the inclination to pay it.

A lot of companies have a lot more controls on purchasing than they do on employee salaries. So a manager who has ten $100k developers reporting to them might only have $10k they can spend at their own discretion.

And the unix philosophy of having many small tools and libraries means practically nobody is _just_ using one open source product. So even if you can get your bill to someone with a million dollars to spend, if they have to share it between 1000 open source projects it's not going to go very far.