You say that as if that's some easy, cheap thing to achieve. Those words are also not concrete at all as to what they mean, exactly. All of these things are designed with purpose and are extremely difficult.
Maybe for YOU, but considering Apple just posted their most revenue ever last quarter, there are billions of reasons to disagree.
(Their products are also not _just_ sexy/trendy, clearly. They basically invented this entire category of modern smartphone despite many previous attempts by others.)
I've met many musicians who actually prefer Beats in the studio for recording. They argue that they don't care for sound quality that much, but they're much more comfortable on their head than any conventional studio monitots. Personally, I found that for DJing, I don't care about sound quality either - it's much more important to be able to quickly move headphones on and off and how comfortable are they on one ear.
Sound quality is not the only important quality headphones can have. Could the same be true for phones as well?