Petros's "Salary theorem" states that "engineers and scientists can never earn as much as business executives and sales people". This theorem can now be supported by a mathematical equation based on the following two postulates:

As every engineer, mathematician or scientist knows:

Power=Work/Time. Since Knowledge=Power and Time=Money follows Knowledge=Work/Money.

Solving for Money, we get: Money=Work/Knowledge.

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

Conclusion: The less you know, the more you make.