Like, don't get me wrong, if we want to start talking about more centralized organization of the economy that operates on the calculated total benefit it provides to people in general, I am personally all for that. But something tells me that is not quite the argument you are wanting to make here, right?
So, you could think of it like this:
New customer: 100k-500k. Existing customers: 5% rate hike or 1M-100M/year in increased payments.
Per customer this may be minor but there are many customers.
The problem has been we have no system for proactive construction of new generation. Note: up until recently in the US demand has been mostly flat. We have been building significantly more power efficient systems so utilities did not know we would see a massive demand spike.
China somehow was able to harden against this and continued to improve infrastructure.