Almost nobody who has a say has any incentive to think long term. For a CEO the next few years are important, shareholders can jump ship anytime. It’s a total alienation of somebody’s actions from the long term consequences.
Most shares belong to 401k retirement accounts of the middle class.
Who is looking out for them? Not the CEO and I don’t think the board either. You need to have a lot of shares before you have an influence.
As a result, some of that voting is running - literally - on autopilot, see https://www.issgovernance.com/solutions/proxy-voting-service... and https://corpgov.law.harvard.edu/2018/11/29/the-realities-of-...
Some fund companies commit to following ISS advice across the board or on certain topics. Others like Vanguard delegate the voting power to fund managers (who have access to ISS reports but aren't obliged to follow it slavishly).