I interpreted “Without this system we’d lost the war ...” to include how untaxed health insurance came about - price and wage controls. Meaning the root of health insurance provided by employers was due to government interference in the markets. I don’t think I misread that. Now I definitely could have misinterpreted any intended sarcasm in what you said.
With full mobilization of the economy for the war effort, there was no danger that a top quality worker would end up in the wrong job provided that both he and the employer could participate in that decision (that he work for that employer on that projct).
Central control of all employment decisions would have prevented good workers from leaving poorly managed systems to go to better managed systems which, due to being better managed, would necessarily provide more umph to the war effort.
WITHOUT HEALTH CARE INSURANCE AS AN INDUCEMENT, Democrat party appratchiks would have been running everything at all levels and we'd lost the war.