Purely a matter of mass market economics. The days of manufacturer, dealer and owner pride have bit the dust. If Ford could assemble cars with Chinese made engines etc. that's what they would do, no matter the name brand on the car.
Farm, construction, golf course machines have all gone the same route. eg. John Deere, an American icon,Japanese and German made diesel engines, Toro golf course machines, French or Japanese engines etc. etc.
Money, Money, Money is why most mass market fools pay the premium for mass market junk. The multi-nationals know you will because you believe their market ploys.
Rolex is really just another watch.
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