My gosh you can read the posts on this thread of myself and others talking about the toxicity of Intel's culture in the 90s.

If you're in doubt, I'd recommend David M. Gordon's Fat And Mean for a discussion of how toxic culture persists and intensifies in corporate America.

Edit: I think can credit the long period of success Intel had to shrewd leadership and leading in a massively expanding market. The thing about a chip company is that it is constantly gambling on extremely costly investments in machinery and people. Abusive tactics that get good people working really hard for average salaries are really useful and "only come due over time" and often when the company foundering anyway.