That's like making a racist joke at a party and, when everybody turns to stare, protesting: "What's the problem? There are no black dudes in this room!"
But since you're incapable of seeing the folly with persistent connectivity, corporations, I'll break it down for you.
First and foremost: It's not a matter of if our connection works, it's whether or not yours works. My bandwidth just has to deal with connecting to your servers to get your information whenever I want to play your game. You're right: Supposing everything goes according to plan, my Internet connection can probably handle that. But you? Your servers have to connect to millions of games simultaneously, across millions of systems, at all times, forever.
Your responsibilities are much more prone to dramatic failure than the meager shit I'm tackling. Look no further than the launch of SimCity 4 for proof of that concept's failure -- or actually, don't bother. I don't think it's online yet. I think we're all still waiting in the lobby for Maxis' servers to be constructed. I understand they outsourced the building to an obscure Amazonian tribe-state that's barely up to steam technology, and there's a pack of marsupial hyena-monsters squatting on the only lithium cache -- but don't fret! The Glorious Seven, the server-tribe's famous warrior elite, are almost through with the Cleansing Ritual and ready to engage in battle -- so any day now we might be able to play the fucking game we bought last year.
And yet nobody thought to spin the experience as more authentic of the crippling bureaucracy of actual city planning. Way to drop the ball, Maxis PR team.