I'm making massive assumptions and generalizations here, but, a lot of developers are pretty introverted and really dislike being in the spotlights, whereas instagram people are the opposite. Without trying to make the term sound negative (it's a personality trait IMO, not a value judgment), it's a narcissistic trait that not everyone has.

I mean I'm working remotely at the moment because of the 'rona and it's not glamorous at all. My desk doesn't look like a generic marketing photo (you know the type, top-down view on a wood grain desk, clean Macbook, steaming cup of coffee, phone, Moleskin notebook, random plant), I don't spend my time lounging and networking (a beer in the back yard at night maybe), I just go upstairs, do my thing for eight hours, etc.

Extroverts and narcissists make software development look a lot sexier, because they have no qualms with putting themselves forward and advertising themselves and their lifestyle.

Me, I hide behind an online moniker and shitpost on HN, often not even looking whether anyone replied to my comments because What If I'm confronted with something.

I'm sure I'd have a much cushier job if I was more extroverted (alongside my current skill level, I'm no genius but I get the job done). Maybe one day I'll go self-employed or work remote for wealthy US companies, idk.