If some slobbering, retarded fuckwit decided to switch to Microsoft Word 35 years ago
35 years ago there was no serious competition for Microsoft Office. It was objectively better than the available alternatives, assuming you judged based on functionality and not cost (or ideology).
No, Word wasn't better, WordStar and WordPerfect were both massively superior to the nascent "Word" but MS sold it at a loss ($30 or something) which wiped out the companies who were making a living selling word processing software. Of course, as soon as the competition was destroyed, the price went up to about the price-point that WordStar and WordPerfect had been selling at.
Biology is the only science in which multiplication means the same thing as division.