Like I know that, realistically speaking, they're not the worst results of imperialism and colonialism, but suits are just so boring, and their universality is representative of the results of imperialism in a clear and easy to see way. Like why did the evils of imperialism have to be accompanied by boring suits.
It's about power and control, not efficiency. Same as the 8 hour workday and not working from home. Keeping workers uncomfortable, stripping them of their individuality to further alienate them from their labour, and manufacturing some sense of 'company unity' are the goals of dress codes. Exhausted, beaten down workers don't organise, don't pay attention to politics, etc.
Yeah this. Anyone who thinks capitalists ruthlessly pursue money... aren't paying attention. They want to get rich, but a lot of them are only in it for the social domination. You should always assume that the emotional need for control is the primary motivating factor behind your boss's action unless proven otherwise.
It's both tbh, because they go hand in hand. That's the entire reason for capitalist accumulation, after all; the contradiction between money's quality of unlimited power, and its quantitative limitations.