One day it's all going to trickle down, just like they promised us, keep waiting! All that wealth is going to leak through and soak our empty pockets until they are heavy with gold! The Holy Gipper wouldn't lie to us.
I feel bad for your sister. Only one reasonable option for an essential utility and all it costs your sister is hundreds a month plus sending all of her private data to a Nazi billionaire who is using it to train his AI while externalizing the costs of light pollution and space congestion/garbage onto the entire rest of the planet? It's looking like there's more than one trick to capitalism.
Maybe look for a better word that encompasses other political systems too - power?
There are many examples of surveillance states (and the best known examples were not labeled capitalist).
The surveillance you blame on Musk is the same from other ISPs - therefore your analysis is simply incorrect. She needs a VPN to avoid ISP snooping on the metadata (IP addresses used, DNS, etc).
And the US is a bigger snoop (Echelon, 5 eyes, Room 641A).
Our individual choices are limited in New Zealand (written on an iPhone - far more snoopy than my ISP).
She gets more utility than she pays for (that's the one trick of capitalism).
Is that trickle down?