What proper utility maintenance could have prevented

Back in the good old pre-2017 days when many Californians paid little or no attention to the approximately dollar-a-month maintenance charge on their electric bills, most customers figured their money was being spent to assure reliable power.
Actually, much of the maintenance money collected over six decades by big utilities like Pacific Gas & Electric Co., Southern California Edison and San Diego Gas & Electric was instead going to executive bonuses and other items never authorized by s