I would argue that those who do get inheritance (at least from people my age that have inherited) have squandered the money in no time and are back as working stiffs.

I would also argue that some of the absolute most hard working persons I have ever encountered in any country are immigrants.  They work hard, save hard, are good kind religious people, help their families, help their neighbors, and are sitting on nest eggs like you can't believe.  And good on them!