This problem is not specific to AI, but a matter of social policy.

For example here in Germany, the Gini index, an indicator of equality/inequality has been oszillating about 29.75 +/-1.45 since 2011.[1] In other words, the wealth distribution was more or less stable in the last 15 years, and is less extrem than in the USA, where it was 41.8 in 2023.[2]

[1] https://de.statista.com/statistik/daten/studie/1184266/

[2] https://fred.stlouisfed.org/series/SIPOVGINIUSA