I think a big part of it is that failures in aviation safety cost lives, often dozens or hundreds per incident, in quite immediate, public and visceral fashion. There also isn't much gradation - an issues either causes massive loss of life, or could cause it if not caught early, or... it's not relevant to safety. On top of that, any incident is hugely impactful on the entire industry - most people are fully aware how likely they'd be to survive a drop from airliner altitude, so it doesn't take many accidents to scare people away of flying in general.

Contrast that to cybersecurity, where vast majority of failures have zero impact on life or health of people, directly or otherwise. Even data breaches - millions of passwords leak every other week, yet the impact of this on anyone affected is... nil. Yes, theoretically cyberattacks could collapse countries and cause millions to die if they affected critical infrastructure, but so far this never happened, and it's not what your regular cybersecurity specialist deals with. In reality, approximately all impact of all cyberattacks is purely monetary - as long as isn't loss of life or limb, it can be papered over with enough dollars, which makes everyone focus primarily on ensuring they're not the ones paying for it.

I think it's also interesting to compare both to road safety - it sits kind of in between on the "safety vs. theater" spectrum, and has the blend of both approaches, and both outcomes.