whats the difference between "bilking" an "milking" the system?

Milking the system means to obtain money or benefits from it (as in to obtain the greatest possible advantage from). While bilking the system means to swindle or cheat (ex: made millions bilking wealthy clients on art sales).

Article references to "milking" and "bilking" the system:

The real benefit cheats are the employers who are milking the system. - The Guardian

MIGRANTS were accused of “milking the system” after figures showed they are more likely to claim benefits than people born in the UK. - Express.co.uk

A $712 million bust, the biggest in U.S. history, shows that the people most likely to bilk the system are doctors and medical providers, not “welfare queens.” - The Atlantic

An owner of a defunct company accused of bilking the Defense Department out of more than $20 million, including charging nearly $1 million to ship two 19-cent washers, pleaded guilty Thursday to federal wire fraud and money laundering. - CBSNews.com

Tags: milkingmoney 
Wednesday, July 26 2017
Source: http://www.thefreedictionary.com/bilking