"Often the argument I hear when talking to people about why they should be encrypting their data or protecting their privacy is 'Why should I? I've got nothing to hide.' Yes, that may be what you tell yourself, but it's inherently false."
In aiming for perfect, we completely discount anything we might take from undertaking the task itself – an exam, a complicated project, or perhaps a dense, pointed chapter of reading. In working on performance, output is prioritized over anything otherwise.
Where it differs, however, is that universal design is generally thought of as trying ONLY to target and include those with disabilities, rather than seeing the forest for the trees. While this is indeed necessary, it can sometimes be a pitfall or a trap for designers, or can be seen as something of an afterthought. When discussing inclusive design with regard to Access Illinois, we sought to make sure that we can have something usable by everybody.