What do you call a wealthy person who doesn't care about how the poor feel and live?
In Persian a wealthy person with no hardships who is unfeeling and cruel to the poor is known as a:
مرفه بیدرد - someone who is featherbedded and can't ever understand the unprivileged's feeling and pain.
Is there a similar word in English which denotes a filthy rich class who shows no sympathy toward the poor?
Example:
In a stagflation or economic crisis ______ never understand how the middle class feel when they're trying not to slide down to the line of poverty, and just they're just trying to make ends meet.
Solution 1:
A recent coinage for that (circa 2011) in the US is "the one percent" or "the 1%".
See this wikipedia article about the Occupy movement and its slogan "We are the 99%".