There's no money in making a thing that works well, only in making things that look good. Effectively 100% of people who are using software are using it for things that fundamentally don't matter, so why should they care if the functionality is shit? Personal computers and phones are fashion statements, not useful devices. Business computers and phones exist to facilitate the bullshit jobs that employ the majority of the white-collar population. Follow the money; nobody with money cares.