The country with the most expensive meat I know is Switzerland. The local chains Migros and Coop mostly sell meat produced in Switzerland. Here's the chicken you can usually find on the shelves in Migros:
They have a high income and are really good at ignoring the poor who do the dirty, low paid jobs and at best eat mortadella/baloney, cheese and eggs (doing their part for the planet, unlike everyone else lmao). Just like other western EU countries, tbh.
Switzerland does have poor people. ~10% of the population below the poverty line which is defined around 2.2k CHF/month per person. This definitely doesn't allow for a lot of high quality meat consumption.
Given that Switzerland has a world class chemical engineering and pharmaceutical industry and production facilities already, hypothetical lab-grown meat from Switzerland will probably among the cheaper high quality lab-grown meat in the world.
My understanding of Swiss manufacturing industry is high-end, complicated things. I agree it's likely that Swiss lab-made meat would be the cheapest in the world, but only by virtue of being the only place where it's feasible to make it.