These are two sides of the same problem. I happened to be in both kind of shoes in the past but this is why hiring is fucked up in tech, I believe. This sentence implies someone is expected to work more than they are paid for if they want to be recognized at something. That's ridiculous. The brightest and most talented engineers I ever worked with in the last 20 years had families with kids (I don't, for the record) and were many years in their careers already, who got offline during the weekend enjoying dinners, doing whatever non-tech stuff and posting only personal content online, sharing it with non-work friends.
If you want me to contribute with bug fixes to OSS while I am doing something else of personal value or have neat weekend projects to post on HN then pay me to do so or at least have the decency of not expectating my own life to revolve around what you think it should. These... "projects"... take time and, deities forbid it, I'm doomed in screenings if I don't share the same passion for engineering projects on late weekend nights as you because you are biased?
Hiring folks, through tech managers' perspectives, talk about freedom but they expect others to exercise their own liberty in accordance to what the company think is best, it seems. Bullshit.