Like, yes I write much less code, but I also have to show much more empathy and be able to communicate with different people differently. Helping every engineer on the team advance their careers is tough, because everyone heard feedback differently.
Combine that with the one on ones where someone tells you about how shitty their life has been recently and how that's impacting their work. It's tough to go from roadmap planning to someone crying at you over a medical diagnosis to jumping directly to status updates to telling your boss no. It's an emotional whiplash not present in the engineer world.
Like I said, not harder or easier. Different.
Size of the empire isn't something a manager does, it's a reward senior management gives. This is true unless the company has open allocation, as Google did before it started eating its own corpse.
But it seems it's hard to hold management accountable.
For an IC such as an engineer, if you don't deliver code for the deadline or check-in, it's clear you haven't delivered.
But how do you judge the performance of managers? Oh, right, by the size of the "empire"...