At 30, most people in the US still didn't know who Gates was (maybe they had heard his name once), much less know anything of consequence about him. Today, if Zuckerberg does or says anything embarrassing, tomorrow hundreds of millions of people will see the headlines and read about it on Facebook, Reddit, Twitter, etc.
Gates and Microsoft got to ride rather quietly to the top of the tech universe until the mid 1990s. Tech just wasn't nearly so important circa 1980-1990 (vs comparing Microsoft or Apple to GM or McDonalds or Coca Cola today).
the 'dos isn't done until lotus won't run' rumor was 80s
But I've seen less art of Zuckerberg drawn as a demon coming for your software - though that may just be a difference between the internet now and what I've seen of the internet in the past.