This is not a real concern; it would even be welcome, even more if the devs could implement some sort of bittorrent infrastucture to share workload.
Companies would try to enter the network by deploying their own instances. But having to deal with them would be very much optional, as they could be easily defederated or simply blocked.
The network would benefit from having the added resources but only those who really wanted to deal with those guys would have to.
Win/win.
Can we spare a moment to think about this?