- Open office plans, except the bosses get offices (there are exceptions, as with any of these other points, but that's the norm)

- Drug testing.

- Anti-moonlighting rules or other onerous contractural restrictions or claims on time off (these kinds of things apply to higher-ups more often than the other two, but it's still common for them to be universal for the "peons" while the C-suite is allowed to have their hands in several pies at once)

In general, being less-surveilled and less-restricted at work (and off work) is a perk of higher-status positions in a company. It's a social class thing, essentially. This tendency predates computerized surveillance.