Isn't the scale proportional though as Elon has 6 companies and Taylor has only 1?

Fascinatingly Taylor Swift has convinced her fans to rebuy re-recorded versions of all of her earlier albums. Not just one album either. So far it has been 4 of them with 6 in total. Her justification of this is purely capitalistic. This is kind of unprecedented, and the success of this for her has been quite spectacular.

See:

https://time.com/5949979/why-taylor-swift-is-rerecording-old...

https://www.nytimes.com/2023/11/06/arts/music/taylor-swift-1...

https://www.billboard.com/lists/taylor-swift-taylors-version...