Instead of making yet another slightly different Helvetica, maybe somebody should make an effort to make a font that renders Latin, Cyrillic and Greek in a unif

Instead of making yet another slightly different Helvetica, maybe somebody should make an effort to make a font that renders Latin, Cyrillic and Greek in a unified style without glaring errors. (As far as I know, there's only one font that does this correctly, and it doesn't support anything but Latin and Cyrillic.) How about a font that renders Latin, Cyrillic, Greek and Hanzi correctly? Why do I have to install a special 'Chinese font package' in 2015?