"The real economy" as a phrase should be taken out back and shot. Or alternatively learn something, anything, about the most basic economics and why tech companies making a lot of money is a good thing.
Did you not read my post? They DON'T make a lot of money. Zynga isn't making a profit. Neither is Twitter. Neither are 90% of the BS apps that these guys are duping angel investors and VC into forking over money for. I'm not talking about Apple and companies that actually make sh!t and do sh!t. I'm talking about the joke world that is the typical Valley start-up.
To add to what Indy said, the tech sector is having ridiculously overvalued companies even when the firms are making money. Yeah, Microsoft, Apple and Intel have transitioned to normal valuations, but then most places aren't like that. Amazon's P/E ratio is something like 1200
