Yes, you made a good point, which I didn't address. Sorry 'bout that.

My feeling is that there are many other factors likely to have a bigger impact on a company's financial success than their choice of programming language/s. Had Google (in a different parallel universe) chosen C++, Java and Perl - instead of C++, Java and Python - would they have been more or less successful in the marketplace? Lacking a multiverse and/or a time machine, we can't just rerun the experiment. :)

For the record, I see that flyaps (fuzzily) list the programming languages used by the top 25 company "Unicorns" (top tech companies with a market estimation of over $1 billion) in 2019:

• Python: 20
• Java: 19
• Javascript: 16
• C/C++: 15
• Ruby: 12
• Go: 11
• Kotlin: 8
• PHP: 7
• Objective C: 7
• Swift: 6
• C#: 4
• Typescript: 2
• Rust: 2
• R: 2
• Perl: 2
• Scala: 2

Generally, I don't have a lot of confidence in these numbers ... more so because they list "C/C++" as a programming language when there is no such language!

See also "Software Development Methodology Science" section at Nobody Expects the Agile Imposition (Part I): Meta Process for a similarly intractable problem, namely attempting to "prove" that one Software Development Process is better than another (and by how much).