PEP 8 specifically recommends using spaces for Python development. And the vast ...

PEP 8 specifically recommends using spaces for Python development. And the vast majority of software developers I know follow most of PEP 8 for Python development. https://www.python.org/dev/peps/pep-0008/#tabs-or-spaces

I'm not a PHP guy (so I'm not sure about this) but it looks like PHP-FIG suggests it too... http://www.php-fig.org/psr/psr-2/

So are we really saying software developers who follow style guides earn more? That doesn't surprise me. Adhering to guidelines is a good way to work well on teams and thus become a more valuable team member.