The USA was created by Oligarchs, and every government since has been captive to Oligarchs....
Concessions to working class, have been made whenever the protests got sufficiently strong to endanger the income, position and power of the Oligarchs... and then the minimum required to safely protect them was the negotiated position.
For all the authoritarianism of the USSR... at least good health care was free and universal, and base living conditions were guaranteed (at a very low level... but still).
The consequence with the USA has been that much of the USA, when analysed dispassionately, ranks as a third world country, with patches in and around major centers, ranked as 1st world.
30 years ago, I remember talking to a senior exec at a major IT company, and asking why data centers were located in the middle of nowhere.... his response was, the networks are good, so connectivity is not a problem, the major cost there is staff, and as the only recruiter locally, they can set the price (very low!!) and have a captive pool of employees that cannot switch to a competitor... They merely had to keep wages high enough to dissuade employees from migrating to areas where they could get far higher wages.