Try working for a measly salary and then not to try and maximise your incomes in whichever way you can...
Cab drivers & waiters/waitresses are given tips of the order of 14-25% of the bill amount in the US. They sometimes even ask for the tip if you 'forgot' put it on the check!!! And this in the USA...
People have families to support and everyone is not a blue collar worker...
Government needs to rationalise its salaries to expect its employees to display better work ethic. There is a very strong relation of work ethic with the compensation paid out by the employers. Ask anyone...