They were both founded to make money. Microsoft was never close to the people and the "great software experience" on the Mac, if it existed, was limited to rich people.
Personal computers were expensive by middle class standards [1], and the sweet spot was educated professionals like doctors and lawyers because they could afford it and it was interesting/useful to them and their families. A rich person who inherited an oil fortune would have been able to afford it, but not interested. A teacher would have been interested, but unable to afford it.
[1] At a time when a decent, no-frills used car would have been around $1,000, you had something like this: ~$700 for a more limited VIC-20 or Z80-based machine, ~$2,000 for a PC-clone, and maybe double that for the Macintosh. For most buyers, it was a big but not impossible expense.
Also, at that time, there was not this extreme divergence in income that you have today. A lawyer might have made more money than a police detective, but the difference wasn't really that extreme and often these two people lived in the same neighborhood. Since that doesn't seem to be true anymore, it makes sense that the definition of "rich" has shifted.