Sure, you can create a closed vertically integrated system which will allow you the freedom to do what you want, but you've not created a platform for others to

Sure, you can create a closed vertically integrated system which will allow you the freedom to do what you want, but you've not created a platform for others to integrate with when you do. The point is those industry standards make the PC a more open platform, where multiple vendors can contribute innovation on the same common basis.