Plane is kinda touching on the BIGGEST problem when it comes to Government vs Private sector function. It's not the Government's money. Its money they've taken via taxes, so they're functioning using other people's money.
And unfortunately, when it comes to human nature, people just aren't the same stewards of someone else's money, than they are of their own. That's why fraud, waste, and abuse are far more rampant in Government programs, compared to the Private sector. It's also why both indentification of those problems take so long to come to light, not to mention any "fix". There's just not the same dedicated function, when its not your money you're wasting, using.
Companies that have voluntary investers & stock holders, which can include their own employees, have an intimate need to make things work, or else people leave, investers pull their cash, profits go down, companies go under. There's a stake involved....literally survival of the company/business. It's GENERALLY why bad employees are fired on the spot, good products are removed for better products, and defective products are recalled for corrected ones.
Yes, OCCASIONALLY some business will try to push a really cheap unsafe product, and they do so at their risk of lawsuit, if not worse. And THAT's where Government can play its more appropriate role in oversight and some regulation. But bottom line is that the private sector, by both design, and human nature, is far more likely to produce better products, better outcomes, with greater efficiency, and less money, than anything the government could ever dream of approaching