The people ultimately responsible for these things not only don't go to jail, they tend to make substantial profit from it after all is said and done. In a a matter of weeks everybody had forgotten (except I'm sure those related to the victims), a slap on the wrist was given, and we're straight back to giving Boeing billions of dollars in taxpayer funds to do the only thing they're good at: killing people.
On the off chance somebody doesn't understand the reference - Boeing is the 2nd largest defense contractor in the US, scoring upwards of $22 billion in contracts las year, after that settlement.
[1] - https://www.justice.gov/opa/pr/boeing-charged-737-max-fraud-...
Can speak from the perspective of a finance professional constantly rolling his eyes at insider traders. Many people assume enforcement is far weaker than it is. That leads them to make stupid choices. For a period of time, during the Iraq War, enforcement was weak around military procurement. But the wheels of justice grind slowly, and I guess every generation needs its examples.
All the covid relief and stimulus fraud that's slowly being investigated is another example of this. All you have to do to disabuse yourself of the idea that law enforcement is weak is go to justice.gov and click news.
https://www.justice.gov/usao/find-your-united-states-attorne...
Click on any of the states, click news. Tons of covid fraud being prosecuted already in all of these places where small fry's thought they could get away with this. Medical fraud is another example.
https://www.justice.gov/usao-sdms/pr?keys=covid&items_per_pa...