Safe in savings??

I've read several of Robert Kiyosaki's books and have enjoyed them because of his "unique" perspective of finances. Today I read his article "Why savers are losers".

"In summary, investors shop for asset bargains, and consumers shop for consumer bargains and try hard to save money that is not really money. That is another reason why the rich are getting richer."

My basic understanding about saving dollars has been based around the concept of inflation. If the dollar is worth less in time why would you save large amounts of cash, especially in savings accounts that earn less than the rise in inflation. I think this article takes that idea even further. What is the dollar? Is it an asset or a liability?