I don't see "bigger hubs" being a relevant factor - or even a useful description - as to why these "bigger hubs" would be more attractive than one I spun up on a different server. What would they offer that someone couldn't duplicate quite easily? :-)
Suppose that everyone has an open channel to amazon. Given this everyone can pay everyone through amazon with just one channel open.
You can spawn as many nodes as you want theres nothing you can do to get any payments routed through your node because X-Amazon-Y will always be the shortest path. The more connected your node is the more useful it is so new nodes have no use.