Managers who solve problems get more credit than those who prevent problems.
A passerby who saves a drowning man gets a spotlight, but not a policymaker who precludes countless of drowning problems.
Humans glorify people who mend a problem, not ones who thwart a problem. When a problem is prevented, there is no problem at sight—even though the problem (if not prevented) could lead to a war that takes thousands of lives or an accident that takes millions of casualties.
Preventing is not as appealing as fixing, which has a visible deed that can be applauded for.