Especially in the startup space I saw companies building software with the hypothesis “users need the latest device for our product and they will get faster anyway so we don’t need optimize our code. Instead we deliver features on max speed skipping optimizations and wait until our users upgraded to newer devices during the coming 2-4 years”.
I don’t even blame the companies for doing this. The benefit to cost ratio of using idk C++ for everything is just too bad.
But how we write the code also matters of course.
Furthermore, competency also costs money. I’m not saying this to be mean to people abusing REST calls.
It's just designed with O(N^3) architectures, "servers on servers" and "callbacks on callbacks", etc. because, seemingly, new features are made by very jnr developers -- who glue these idiot-proof frameworks together ---- trading needed-knowhow for polynomial behaviour.