Making tired people less stupid would require a fundamental breakthrough in neuroscience---and it's not for want of trying that no one has found a way to do so yet.

My mum worked for the NHS and I'd regularly hear her complaining for weeks/months on end about new IT systems that either didn't work, were hard to use or were months or even years behind schedule. All while knowing how much these projects cost (it's all public info here) and that the people working on it where getting paid in a day what she would be lucky to make in a week.