Does the tech industry ruin cities?

[pdxtex]

Would you consider the tech industry to be a welcome addition to a city or a curse in disguise? At first glance, I might think high tech is great for a city but peel back a few layers and its almost like economic strip mining. Industry of innovation but highly volatile, funded by venture capital and staffed by over worked indentured servants. Im starting to think I'm glad Portland is less involved in software and more involved with hardware manufacturing.