equality?

I don't understand why some people feel that the rest of the society is entitled to the "rich people's" money to make us "equal".

Rich people's money, no matter how rich, (usually) is THEIR  money.  They earned it, or their family members earned it, so it's theirs.  Why do people think that just because they own a lot of it, the rest of the country is entitled to what's theirs?

I don't get it.  I don't get how that is some people's view of equality.  Robin Hood was a hero because he robbed the rich who got there unjustly and gave to the poor.  The same does NOT apply in this world...

<vent over>