Expediency is living as though the ends always justify the means. It is going along to get along.
A Jewish boy named Karl grew up in Germany in the early part of the twentieth century. His family was very religious. They attended synagogue services regularly.
Suddenly the family moved to another German city where there were fewer Jews, and a majority of the affluent, influential town leaders were Lutheran. Suddenly the family started attending the Lutheran Church.
Karl said to his father, "I thought we were Jewish."
"We are," replied his father, "but don't tell anyone. I want people to accept us."
The boy learned from his dad that religion is a matter of expediency.
The boy's full name was Karl Marx, the father of the Communist movement.