At the end of the day, yes. It's all arbitrary and art's monetization came from diferent historical contexts. There could be a timeline where artists are highly respected and well compensated positions while tech is just some nerdy hobby being used for exposure.
But I feel it's more interesting to understand why and how we came to those contexts. e.g. for tech, the big money came from the explosion of tech in the U.S. during the 90's and the vast amounts of money being invested into up and coming companies to take advantage of it. Getting to a point where the biggest companies would give the biggest money to the biggest talent simply to keep them away from competition, or from becoming future competitors themselves. Companies paid for labor and time, so compensation worked accordingly.
I don't have an intimate history in art but I imagine a part of its monetization history comes from the fact that the primary delivery doesn't make that much money on its own; i.e. you don't become rich broadcasting Mickey Mouse on public cable to millions. You get rich selling Mickey Mouse merch and making deals to slap Mickey Mouse on whatever wants the advertising boost. So how do you determine how much to pay the creator in that case, which may make $100 or 1 billion? some sort of rev/profit sharing system makes sense. If it fails they get a pittance and if it becomes huge success the creator retires for life while the IP holder still gets the bulk of the money.