IMHO there's another structural issue: Expansion of the "landed gentry" class.
That is, people who own a property can live their whole life of it without single contribution to the society. They might own the property due to a sizeable contribution they made early on but lately a lot of people simply got lucky to be at the right place at the right time due to policies that favoured them or events that happen outside of their control or simply inherited the property.
Those people are taking large portion of the output of the productive people and because of the regulations and market dynamics their wealth doesn't come down but even keeps climbing.
Normally this would be reserved for the elites and can be tolerable and maybe even desirable but when you have that elite class large as today, the resources they take out of productive people gets very significant.
For example, if someone who happened to own a shitty house in an area where a lot of people suddenly start come to work, they can extract much of the productive output of the companies and people there simply because its not feasible to build new housing due to regulations.
When a company happens to solve the navigation needs of the world from SV, they happen to pay very significant chuck of their money to landlords in SV. The people who solved the worlds navigation needs might appear to be compensated handsomely actually don't keep the money for long, they transfer significant amount of it to landlords.
Then you end up with something like 2 people who solved the navigation, 5 people who produced and serviced the consumption needs but 10 people compete for the output of these 5 people since 3 people did nothing but just got richer by keeping owning a property.
Actually, these 3 people don't have to be property owners only, it can be anything that brings enough income for life without any further input to the society. Ideally, this wouldn't cause a problem because ideally they should have been living the good life for some huge contribution they made early on but due unfair market situation they ended up like lottery winners.