You forgot the part where after 2 years they are shown the door but with a huge payout and glowing references ostensibly because "We don't want to ruin their careers" but actually: We don't want the market to know we hired this idiot and it took us 2 years to work it out and we don't want to be sued by their high-priced lawyers.

Then they take their "success" to the next company and the cycle repeats.