Your original post implied google is being a freeloader: "...they benefit in no small part from that money. [...] Frankly, without government money, Google would not exist."
I'm just pointing out that if google limits their exposure to 25% of what it might be, they are still paying for all the services they use and far more. They pay not be paying for all the services you want them to pay for, but that isn't the same thing.
I'm also pointing out that it's not quite honest to list only the useful government services, when they are dwarfed by wealth transfers. That's a tactic worthy of congress, similar to naming a law "To amend the Internal Revenue Code of 1986 to provide earnings assistance and tax relief to members of the uniformed services, volunteer firefighters, and Peace Corps volunteers, and for other purposes" (where "other purposes" == bank bailouts).