Look at some of the largest tech companies and what languages they used to get big:
- Facebook: PHP
- Twitter: Ruby
- Dropbox: Python
- Box: PHP
- Github: Ruby
- AirBnB: Ruby
Probably not what PG would have had in mind.If you move away from his objective claim about Lisp's "power" to a subjective metric based on "the right tool for the job", then sure. (Though reading e.g. Hackers and Painters, his argument around Lisp was specific to the power of that language.)
PHP perfectly fits the "move fast and break things" mantra of early Facebook. Ruby allowed for quick iteration at early Twitter.
Note that Facebook built a PHP-to-C++ compiler called HipHop, while Twitter switched largely to Scala. Box (to the best of my knowledge) has supplemented PHP with Java and Scala. Github maintained a custom fork of Rails for a long time to achieve the performance it needed.
So no, it doesn't appear that Lisp-flavoured companies have an advantage.