I disagree with you based on your premise that there will ever be incentive to lower the debt. Our monetary policy is provided by a private organization that thrives on debt and they own the majority of it: It's called The Federal Reserve. The greater the debt, the larger the amount of the US's wealth they own. They'll happily hold claim over the political collateral that is the US and its citizenry any day over being paid off.
Your dream is a false one. The truth is the greater the debt, the greater our benefactor's power. Little can stop this machine especially the pretentious old men on capitol hill. They were the ones that signed this nation over to The Federal Reserve in the first place.
The only conclusion is the banker's continuing their endless cycle of laundering through their international monetary regime. They continue to dilute our money while they increase theirs (Gold). As they do this, the further we dive into slavery all made possible by worthless paper we consider wealth.
In summary, don't put your faith in puppets.
Well I agree that lowering the debt is not the goal, but rather growing the economy. And there considerable untapped growth in the black markets.