Sure this seems to have worked in high-trust homogenous society with similar values and goals. They have a very high baseline of wealth given abundant natural resources that'd need active mismanagement to not have a strong economy.

Extending their taxation or economic system to a larger, more populous, diverse, and economically fractured society would lose most of the reasons they're succeeding.

The question is still circumstantial correlation or causation with these factors. What you can conclude is that high taxes do not impede happiness or economic prosperity.