Big companies just wake up the worst instincts in everyone involved.

I've seen people getting thrown under the bus even for voluntarily quitting due to burnout. Like legitimately doing illegal stuff such as withholding documentation or writing recommendation letters in secret code.

I know of a company that I worked that is currently under fire currently for not following the law and lying to employees by advising them incorrectly about their rights. They can't even fucking fire people properly without breaking laws and treating them like shit.

No company deserves anyone's loyalty or concern.