Why did some criticize the theory of "trickle down" economics?

Question

Why did some criticize the theory of "trickle down" economics?

Answer 1

Often it dosn't work quickly or gets cought up in the CEO's pockets.

Answer 2

1. They don't understand it.

2. They don't want to believe it.  

While the poor are eating choice cuts of meat, driving SUVs, taking their boats out on weekends, talking on their cell phones, riding ATVs and Harleys, living in their air conditioned homes and playing their Wii's, these critcizers look at the wealthy and see them with even nicer things and think the poor are really bad off.