Apart from the technical benefits of languages like Lisp, OCaml, Haskell, these days one also needs to consider social aspects before one invests too much into a single language.
In terms of influence and earning potential, parochial and closed languages like Python are kind of a pyramid scheme:
The people who were there first occupy many of the top positions in industry, regardless of their contributions or competence. They actively harm and intrigue against dissenters, so be prepared to chant the religion of the day (which the powerful change from time to time).
This sort of thing cannot happen in languages with a standard and multiple implementations like Lisp or C++. Haskell and OCaml seem to be isolated from the most petty forms of intrigue because the average contributors are way smarter and care more about actual technology.
In terms of influence and earning potential, parochial and closed languages like Python are kind of a pyramid scheme:
The people who were there first occupy many of the top positions in industry, regardless of their contributions or competence. They actively harm and intrigue against dissenters, so be prepared to chant the religion of the day (which the powerful change from time to time).
This sort of thing cannot happen in languages with a standard and multiple implementations like Lisp or C++. Haskell and OCaml seem to be isolated from the most petty forms of intrigue because the average contributors are way smarter and care more about actual technology.