I know what you're trying to say
No, clearly you don't. This has nothing to do with the quality and everything to do with who purchases something.
An example: I will charge Joe Blow more money for one of my hotel rooms than I will charge a corporate client who stays at my hotel frequently. I will charge the government more money than I charge the corporate client, despite the government having more people stay at my hotel, but I'll still charge them less than I charge Joe Blow.
Everyone gets the same room, none of them pay the same price.
Why will I charge the government more? Because I can. They have bloated budgets and no one is truly held accountable. The same deal works for most products.
My absolute favourite customer though? Relocating military personnel. They'll come in, tell me they need a room for 3-4 weeks, I'll try to negotiate with them and they cut me off saying "I just need a room. I don't care about the cost, the military is paying for it." Oil and gad exploration companies are a pretty close second for the same reason.
So, yes, who the spender is does affect the cost. And it's not just as simple as government versus corporate versus individual. Costs will vary depending on the department spending as well.