A programmer spent a lot of time honing their craft, faces every day challenges, has growth opportunities, can aspire to higher salaries through tough work, has growth opportunities, can influence the world around them and create new things. Coding yields power.

While modelling may require difficult labour, it's mostly just "congratulations for your face".

Now do it for 12 hours straight. Yes, it's just a pretty face, no skill required.

It's not about whether it is difficult or not, it is more about what type of culture do such things foster and what values does it signal (referring to "SV roller skate models").

Men having polite conversations with women is 'wrong' only in a dystopian future.

I personally think it's a little ridiculous and would not want to attend, nor would I put together a party like that, but it's a matter of social taste, not morality.