Sure, but you have selection effects at the end of a really brutal pipeline from their perspective, so the culture of people conditioned on going through this process is always going to be kinda an asshole.
People go into banking and have shitty hours and culture because there's a nice rewarding story at the end of it (money, prestige, whatever) - similar to what would be at the end of moving somewhere prosperous. The problem with banking culture isn't an inherent problem with American culture, it's merely a product of a system where you have such a hiring system.
Unlike in banking, however, the toxic culture isn't a product of a company or market forces, but the outcome of such a restrictive visa regime. Change the visa regime, and the culture (eventually, you have to give it a generation) also changes.
