Human beings are predominantly right footed. Therefore, there's a sense that those that are right footed are natural. Whereas, those that are left footed are a rarity in comparison. Now something that is rare may be perceived as fancy, pretentious, or even cultured. Although, if you perceive those to be left footed as cultured, one might consider those to have the dominant right foot to be primitive in comparison.
Going back to 447 BC, being from Ancient Greece was a great source of pride, you had the Parthenon frieze on the beautiful Acropolis amongst other things. Whilst Athens, and Pericles according to Thucydides, claimed to be accommodating, there was nonetheless a sense of superiority. Indeed, foreigners were considered barbarians by Greeks, as there was a sense that because they were unable to speak Greek, they sounded like "bar bar bar."
Most people when going for a burger would be content with a hamburger, with meat and ketchup. Whereas the cultured man would go for something packed with umami flavour like an Asion fushion burger, willow farms organic Turkey, toasted tallegio cheese crisp, papaya chutney, black truffle aioli and microgreens on a gluten-free brioche bun.
Examples of footballers with a "cultured" left foot may include the following:
Cruyff
Di Stéfano
Hagi
Marcelo
Puskás
Rivaldo
Rivellino
Savićević