Aren't SpaceX creating Starlink to generate funds to support other projects; in particular, their plans to create the rockets and infrastructure to ultimately colonise Mars?

i.e. not (primarily) to "enrich a much smaller set of investors (and particularly Musk)"?

Yeah, that was silly and disingenuous. We're talking about a guy who could have retired in lavish luxury 15+ years ago if 'riches' were all he wanted. He is Mars or bust and looks like he's put together a company with the chops to pull it off.

My point was that when companies look for literal moonshots to keep finding decent uses for their money, it’s usually not long after that the dividends start be paid out.

That is to say, by the time their Starlink-esque network would be generating revenue, odds are good AMZN is paying a dividend.

Fidelity has a biyearly traded SpaceX fund.

Isn't it just a small slice of many things held in a mutual fund? or there is actually pure spaceX fund/vehicle?