Alright look, you're not understanding how working conditions and wages move upward. People get paid more and work in the gucci air conditioned offices not because legislation is telling them they have to, but because their production standards do.
Workers get paid roughly according to their value marginal product. If they don't, someone will. You see how that works? Its simple but nuanced game theory. If you're going to under pay your employees below their productivity (or make their working conditions really shitty) then you're just handing over a margin to be exploited by your competition. Now here's the kicker. What makes their marginal productivity go up? Well that's capital. Entrepreneurs that give their employees capital to increase their productivity must also pay them more... because their marginal productivity also goes up.
But just for some extra myth busting, no, World War II most certainly did not get us out of the depression. In fact it extended it, because all the production reallocated for the war to make bombs and bullets was redirected away from producing things people wanted to buy. To boot government programs like the New Deal just decelerated the recovery.
You kind of see how the economy really functions now? It's not about employment or even about production for production's sake. It's about producing the things that people want for the lowest cost possible, and there's no room for government to get involved. As a point of contact for you, look at the depression of 1921... Can't find it? That's because it didn't happen. The correction in 1921 was more acute and more severe even than in 1929, but we never hear about it because the recovery was equally as sharp. The difference was government involvement following 1929.
Shocking how much they brain wash us during those twelve years of government indoc, huh?