We don't need death sentence, we just need, like, any regular sentence
Holmes et co have been charged and incarcerated, SBF is also sitting in prison, other executives at smaller companies have also been prosecuted and faced imprisonment. I think there is a lot of fraud in various industries, but some of it is prosecuted, and some of it is legal enough that there is only a fine to pay. There is some accountability, and as much as i can criticize what corps do, i don't think of them as "legally responsible" for every misuse of their tools. Today it seems that if someone cuts their own leg off with a power saw it is a lawsuit against the tool company.
Insider trading - Using knowledge of impending policy decisions and military operations to massively profit from the stock market.
Further than this, one could argue that those policy decisions were made, or at least timed, in order to deliberately short stocks in order to reap profit. The timing of a lot of the Iran war announcements followed very suspect patterns.
Using the highest office in the land to promote personal businesses.
Awarding military contracts to companies linked with family members of the administration over other more suitable options.
We'll likely never see any accountability for the literal billions being illicitly gained by the current administration after they've left office.