Starlink is definitely filling the niche market of providing internet connectivity in rural and sparsely populated areas where firms with traditional business models with fiber-optics based network are not incentivized to provide. The real question is: will Starlink become profitable by in turn finding a big enough market itself to be able to cover the Billions of dollars of cost of manufacturing, launching and maintaining these satellites? Elon Musk seems to be open to separate Starlink business from SpaceX and list it publicly in future (he tweeted something in that regard previously [1]) so it seems like he definitely thinks Starlink can become a profitable business in near future.
[1] https://www.cnbc.com/2022/06/07/spacex-starlink-ipo-elon-mus...