Who did what first doesn't affect the user experience. What makes a product good to use is more about which ingredients are included - or omitted - and how they work together.
Take the iPod - the form factor of a higher-end cassette Walkman with a wheel from a Bang and Olufsen telephone on the front (or a Sharp Minidisc player 722 if you want to stick to personal audio products). Neither element was new or novel, yet Apple beat the competition in marrying the two to a new Toshiba 1.8" HDD. Heck, Creative based a HDD MP3 player on the form factor of a personal CD player - they deserved to fail. Prior to that, Sony had done a lot of work with scroll wheels, on their professional AV editing equipment, and on their mobile phone OSs.
Macs have supported right-button-click since OS 8 in '97, and the Apple-key modifier since before then. Unix and RiscOS users might have wondered where the middle button had gone in Windows. My current mouse has quite a few more buttons that I use as modifiers (pan, rotate, zoom) which previously were assigned to F1, 2 and 3. Other modifiers (Shift, Ctrl, etc still require me to use the keyboard, and it's no effort, even when the modification changes upon the context).
The OS defaults don't really matter - people will fine tune individual applications to their will anyway (digitisers in Photoshop, Space Navigators in CAD, keyboard shortcuts everywhere, gamepads for games)
(I've never owned any Apple kit, but have used RiscOS, CAD on Unix and Windows, media players from Sharp, Sony and iRiver, and cameras from Panasonic and Sony. Logitech made my mouse. My Samsung tablet is in a drawer somewhere. My newest purchase was a combination camping lantern and flashlight with a pleasing user interface: a single button. Tap on, tap off. Hold to dim, hold to brighten. Double tap to switch between lantern and flashlight. Triple click to turn both on at once. After being turned off, it remembers its last state for ten minutes.)