Our own cperciva wrote an interesting take on wealth inequality:

http://www.daemonology.net/blog/2011-01-10-inequality-in-equ...

The elderly should have significantly more accumulated wealth than the young, because they've had longer to save. How much more, I couldn't say. But I'm always skeptical of attempts to tug at my heartstrings by pointing out that "those people" have more wealth than "these people" without some sort of systemic model to back up the complaint and explain what the proper level of inequality should be.