The Greed factor you mentioned is very interesting. My neighbors mother is a big time hoarder of "resellable" stuff. She started because his dad left her, and the stuff is her income security ....or it started out that way. But she got employment that now covers all her bills and then some, but still constantly accumulates stuff(used clothes, used appliances, yardsale finds, curbside finds,etc.)
However, she rarely has a sale of her own. When she does, she usually has to take time off from paid work, and rarely makes $100 per sale, for twice the labor of hourly work.
So....I find this fascinating to have her compared to the 'millionaire hoarder of cash'. But why not. Rich people are often painted as being workaholics....ignoring their kids and family. Making better decisions for their business than theirselves. That sounds like illness to me!
I started a business many years ago, and it ended up being moderately successful after a few years-- earned me and my family a decent living.
I was constantly being hit up by people who wanted me to expand and franchise and what have you, and they saw me as a complete "failure" and "slacker" because I wasn't all over that... well, I was making a good living from a reasonable amount of work. They kept selling me on the idea that I would be able to "afford" a mansion, and a luxury yacht and so on... without even ONCE pausing to ask what I might be interested in achieving/having.
You are a lot wiser than most!
I am sure you chose best to stick with what worked for you.