Based on the figures given, I am guessing you must be talking about Singapore, which has a GDP per capital of USD 84,000 and a population of 6 million.
Singapore became wealthy thanks to its strong political leadership during a period of strong economic growth, by leveraging its very strategic location on the coast in Asia, and its heritage as a trading hub dating back to the British empire. These factors allowed Singapore to benefit greatly from economic growth in all of Asia and to become a major financial centre for the region. Also, Singapore is in effect a rich city-state on the coast of a continent, sort of like what London might be if it were its own country and well-located on the Atlantic coast of Europe.
Even if you are not talking about Singapore, it must be a high-GBP per capital country: most countries with such low tax rates have weak public services, leaving its weaker and older people vulnerable to poverty, suffering and early death.
The UK needs to take its actions based on today’s starting point for the UK. GBP per capital is USD 49,000, and we do not have large sovereign wealth funds backing our state pensions, and we have the infrastructure that we have. The UK could have been a sort of gateway between the English-speaking world and Europe in some ways, but we are an island nation and our near neighbours are not experiencing strong economic growth and development the way Asia was and to some extent still is. There is no large country in the world with taxes as low as 24% income / 9% VAT / 0% IHT that also has strong public services and good infrastructure. Singapore is amazing, but we should not delude ourselves into seeing that as a model for the UK.