1) performance reviews are never aligned with employee value, because companies are strongly invested to take excess production from employees and transfer it to management, secondarily shareholders

2) the are also not aligned with the replacement cost of employees because the religion of management is that labor is effortlessly replaceable and low value

3) employee retention is not aligned with corporate performance in Machiavellian middle management, it is aligned with manager promotion for things like loyalty and maintaining fiefdom power, budgetary size, headcount, etc

4) there are no absolute or ever directly derived metrics in software development that have ever worked, to say nothing of other positions

Those are off the top of my head.