I think it should be deflated quite a bit.
I also think that for the benefit of adding virii to your own server you should be targeted much more by the corps.
I wouldn't mind if a Robber Barron costs and produced something along the lines of a File Share virus, but retain the ability to stay on your own machine and target the corporations.
As part of this, I think Corporations should target them often with about the same payout as file shares of equivalent value.
Another thing that should be added is the inability of your own group from killing your virii and collecting on them.