It may remain, however that doesn't mean the temptation isn't crippled.
A 1 billion net worth person is less likely to be tempted by a $50,000 "enrichment" opportunity compared to someone making $174,000 with a net worth of less than 100k.
Working for a living and owning things for a living provide very different incentive landscapes that are often opposed to one another. Assets pay you in proportion to how much you own, so "owning things for a living" is roughly synonymous with a net worth above a line that lands somewhere between $10M and $100M depending on how you draw the line. In any case, if you work for a living, you definitely do not want to be represented by politicians who own things for a living.
As an alternative I propose the Aztec method. While they are in office, the elected is given every possible luxury and upon leaving their sacrifice is ceremonialized in a very public way so that all know the elected did not perform their duty for personal gain.
This is a good point. People act rationally all of the time, plus nobody has ever become a billionaire by compulsively capitalizing on every opportunity to gain wealth.
Did he? Probably not, when you look at all the facts.
https://www.nbcnews.com/politics/donald-trump/trump-organiza...
According to the NPR article, the SS has a $200 per-diem limit for hotel expenses and by staying with Trump at his hotel (where rooms run about $1k/night), exceeded this limit.
This raises the question: how do accommodations work for president's entourages when traveling? I have a hard time believing that they restrict themselves to Holiday Inn tier establishments. Hotel rooms in larger cities can easily run $500/night, especially on a short notice.