I think you could address that by using what I call "Universal Ranked Income". The idea is that there are floors and ceilings on income, wealth, and so forth. The floor is basically a minimum wage, while the ceiling of the highest income bracket is absolute - people simply do not get any more income at that level, regardless of their job or investments.
In addition to this, job classes should be assigned a rank based on the effort, risk, and knowledge required to perform the task. The job class has a fixed income, that employers can't alter. They cannot manipulate the number of workdays, the income of a job is fixed, with each month delivering a set wage. Workhours and days are also fixed, to prevent employer manipulation.
Next, is a small pool of income archetypes, from lowest to highest. By keeping the diversity in job ranks to a dozen at most, employees can say "My boss isn't supposed to get that much money, they are only X. Something smells!". By creating a framework of obvious rules, it would be easier for society to nip potential oligarchs in the bud.
Here are some ranks from my notes as a baseline sample:
Rank 0: $10,000 per year, 05% / 10% cultural & social taxes, resulting in -$1,500. Has no work obligations.
Rank 1: $10,000-20,000 per year, 10% / 10% cultural & social taxes, resulting in up to -$4,000. For students, who receive a level of income based on grades.
Rank 2: $40,000 per year, 15% / 10% cultural & social taxes, resulting in -$10,000. Waiters, clerks, curbside hawkers, daycare staff.
Rank 3: $60,000 per year, 20% / 10% cultural & social taxes, resulting in -$18,000. Crop pickers, athletes, sex workers, couriers, nurses, police, teachers, journalists, soldiers in cold zones.
Rank 4: $80,000 per year, 25% / 10% cultural & social taxes, resulting in -$28,000. Doctors, engineers, lawyers, professors, researchers, hot zone troops.
Rank 5: $100,000 per year, 30% / 10% cultural & social taxes, resulting in -$40,000. Astronauts, Firemen, ambulance staff, hot battlefield leaders, surgeons, diplomats, lumberjacks, lead researchers.
If you look at the example, notice that education has become a job. It delivers a variable income based on performance, but is still less valuable than being a waiter, who has a fixed $40k income. Education is a pathway to a career, and people can focus on the path, since education offers an income for being studious. The current method of education sucks, because a person has to balance their survival, wellbeing, and education against each other. This is extremely inefficient and punishes people.
Further, I think the URI can potentially negate inflation. This is because the value of money has to be judged against the fixed incomes of society. Remember, jobs lost value, largely because employers keep the fruits of productivity to themselves. By enforcing fixed incomes for everyone and placing heavy restrictions on organizations, we can mitigate that siphoning of wealth. Price controls are much easier when you don't have a huge variety of income factors to confuse the calculation.
I expect that we will be fighting Xittergruupen divisions within the decade. These malicious boys will become evil men.