The UK has an extremely entrepreneurial culture as well, which is shown in the data (number of businesses registered, number of startups, both per capita), it ranks very highly, along with other indicators of innovation, it might not be as entrepreneurial as the USA, but globally it ranks very highly. The fact that you mention the Soviet Union and its central planned economy and the (outdated and stereotyped view of the) British class system almost like they are equivalent really undermines your point as well.