The documentary The Bibi Files was a particularly interesting examination of the allegations against him and his almost shrugging response to them [0]. And going back to America, a week ago Trump asked the Israeli president to preemptively pardon Netanyahu during his speech at their parliament [1], which I find to be concerning on all possible levels.
[0] https://www.imdb.com/title/tt33338697/
[1] https://www.reuters.com/world/middle-east/trump-urges-israel...
How about it if by a fuller acceptance that power corrupts, we have the head of government only serve for one term and automatically be taken to (actual) prison once their time is done. They would then have an expedited trial by a socioeconomically diverse jury representing the population, judge their overreach in different areas, and how long of a sentence they should be given; at best, they would be released after a month or two for time served. Afterwards, unless this has been explicitly revoked from them due to gross misconduct, the former head of government would be given a sufficiently generous stipend to live and travel without ever needing to work again, and encouraged to spend the rest of their lives on charitable pursuits.
The big risk I see here is that by stripping some of the long-term power from the head of government, it would lead to a re-concentration of powers in a head of party role, or other behind-the-scenes power brokers, but the intent here is that the head of government once elected is explicitly given the ability to overreach, and particularly knowing that they'll be set for life, they'll have the freedom to act independently, in what hopefully would be their take on the country's best interests, and a desire to leave a positive legacy. And furthermore, I think that restricting the ascension to power to those who are willing to take on that prison time would attract people who are a bit less vain than the typical crop of candidates, and at the same time reduce the stigma of prison in general, and hopefully lead to political interest in improving prison conditions.