Now we have mathematical proof that explains why this is true:

 Postulate 1: Knowledge is Power.
 Postulate 2: Time is money.

 As every engineer knows,

 Work
 --------- = Power
 Time

Since Knowledge = Power, and Time = Money, we have:

 Work
 --------- = Knowledge
 Money

 Solving for Money, we get:

 Work
 -------------- = Money
 Knowledge

Thus, as Knowledge approaches zero, Money approaches infinity regardless of the Work done.

Conclusion:  The Less you Know, the More you Make.

Note: It has been speculated that the reason why Bill Gates dropped out of
Harvard's math program was because he stumbled upon this proof as an
undergraduate, and dedicated the rest of his career to the pursuit of ignorance.