I take issue with your thesis. Every day, I ride to work on the Metro Expo line, which was built on time (actually early) and only delayed opening because a private company couldn't get its shit together and build the rail cars on time.

I'll make the case that, as a nation, we're doing fine with the ability to deliver civil infrastructure projects on time and on budget, and to manage them once they are operational, in those regions where they actually care about their infrastructure. See, e.g., LA Metro, Denver's metro, Cleveland's RTA, our utilities grid post-Enron. These are all things done at a scale and density that have been equaled or exceeded only by authoritarian states.