Poettering famously began work on systemd while at red hat in order to solve red hats problems.
The people behind systemd didn’t find someone to pay them for their work, they were already employed working for a company in the enterprise linux market and created a software package explicitly aimed at solving enterprise linuxs’ problems because linux was looking bad in comparison to the very mature windows server administration environment.
It’s why systemd has insane feature creep and why back when it was announced literally everyone not on the payroll said “what, why the fuck would I want that? RH BTFO”
Systemd attracts the most people willing to work on init because those people are being paid to do so by companies that sell linux. The companies that sell linux want systemd because its the enterprise solution and if their software or hardware integrates well into the systemd process then they can make money by making lots of sales to people who either work out of or run gigantic datacenters.
This isn’t a case of the best solution with the most democratic support being funded by benevolent community focused businesses (who yes, do make a tidy sum but that’s how the cookie crumbles!), it’s a case of a system exactly like windows getting built by the employees of a company who wants it so it can advertise feature parity with windows in its products!
I feel insane having to type all this out.