Earlier quoted context omitted.
History doesn't really support that. PHP, Python, Ruby, Tcl, OCaml, Lua. Successful programming languages seem to come in equal measures from both large corporate backers and not. There is certainly the need for network effects which large corporations often can provide more consistently, but we have seen plenty of examples within the space where individuals or smaller companies have been successful in providing thes…
Python came out of CWI in the Netherlands, where Guido van Rossum worked and had previously developed the language ABC. OCaml came out of INRIA in Paris. So both had institutional backing and financing.
That's sort of why I threw in OCaml; largely it is still only successful within academia. Python on the other hand had similar beginnings, but has been wildly successful both in academia and in common use.