Because the droolers will work for next to nothing, won't give them any trouble, won't look to better themselves and won't leave for something else if and when the economy picks up.
They don't won't good people. They just want someone who works cheap. All areas. All fields.
Corporations aren't all doing all that well ---K-mart, Enron and many others. Partly because their CEOs only are raiding them for the millions they can take, they don't care one iota if the corporation survives. The companies would do better if it was the droolers running them, they'd make off with fewer millions than the thieves.