In the 12th century ...

... it seems :

5% of the population fought wars.
5% of the population sought divine mercy, probably for those at war.

90% worked to support them.

In the 21st century little has changed :

10% of people are still supported by the 90%.

... and that's the dilemma for David Cameron and his government, how does he influence society to become fair and equitable without taking away from individuals the incentive to create the future.