This is also an important factor in why public-sector and government solutions cost so much more. They have to serve everybody, regardless of disability, the tech available, etc. etc. A company can just dis-regard the 20% of the market that is expensive to serve; governments, the DMV, etc. can't.
That points to the other part of the issue. It is not enough to insist on 100%. It is also necessary to develop those solutions efficiently and to develop the right things (have good taste.) Both Sony and the public sector cannot achieve superlative results, for different reasons.
