They are also bigger and make more money.

It's much more efficient to pre-filter candidates before they get in front of an FTE.

So they make more people loose 4 hours of their lives?

Four hours is on the low end, even for regular companies. Online assessments, phone screen, on site, various calls with hiring managers and internal recruiters, post-interview follow-ups, all combined can easily push up to 8 hours or more over a few weeks.

4 hours is a bog standard interview process. I would seriously question the standards of a company that spent significantly less than that.

Guess our standards are terribly low then. Nonetheless get some pretty great candidates.