I am not calling anyone out on this. It is merely an observation of mine that some people who will look at passive investment with hyper critical eyes and claim that, because they have to put forth any effort of their own at all, they insist that an otherwise passive investment is actually an active investment. It is my opinion that, in many situations, this criticism is coming from a tendency to be lazy and is evidence that this person might be looking for a "get rich quick scheme" or are looking for a high yield savings account type of financial plan rather than actual investing.
It is easy for anyone to throw money at a so called investment opportunity and lose all of his/her money for lack of doing any investigating, due diligence, or what some might call work. This is what I would consider a distinction between a real investor and a gambler. Whether you are buying real estate, buying precious metals, buying stocks, buying mutual funds, buying companies, or giving someone else an interest bearing loan, the point at which you become an investor verses a gambler is when you are willing to put forth effort in ensuring that you have mitigated risk and taken advantage of all possible profits. If you are unwilling to put forth that effort, go to a casino. If you are willing to put forth that effort, you will soon see that, even with that effort, you can turn nearly any "active" investment into a mostly "passive" investment. The difference being that, with a passive investment, you will most likely have money coming in from the work of others or because of market volatility rather than having the majority of that money being a direct result of your own labor.
An example of this would be when I have a meeting with the manager of the Burger King I own or a meeting with the property manager of my MFRs. I am working very little and am collecting much money because of the work of others. It is leveraging time. Just like with leveraging money with bank loans or hard money loans, it requires a little bit of my time if I want to be successful at it. This is not to say it is an active source of income; it is instead staying on top of a passive source of income.
Example 1a: you flip houses and do all the work yourself - you have a job. = active investment
Example 1b: you flip houses and have a GM organise contractors and a realtor finding the deals and finding buyers. Your office manager sometimes has a question for you. = passive investment
Example 2a: you buy rental units and manage them yourself, doing your own repairs and evictions and application processing. You receive broken toilet calls at 3am. = active investment
Example 2b: you buy rental units and have a good property manager. Every month you see your accounts have more money than the month before. = passive investment
Example 3a: you loan $25,000 to a person you don't know for his investment and do no due diligence. = you are a gambler
Example 3b: you loan $25,000 to a person you have thoroughly vetted, done your due diligence, secured collateral, and have a good lawyer. = passive investment
Example 4a: you put your money in a 401k and hope for the best. = you are a gambler
Example 4b: you buy a company, place competent managers over it, have that manager hire competent staff, and you keep your thumb on everything, having occasional meetings for effective communication on expectations and efficiency. = passive investment
Example 4c: you buy a company and work it yourself. = you bought yourself a job that some call an investment to make themselves feel successful.
It all comes down to whether or not you are willing to put forth any effort at all.
If yes, you have the possibility of having an investment. Active if you are doing all the work; passive if you hire others.
If not, you are a gambler.
So, to your original question, if you are active you limit your effectiveness because you run out of time = less money
If you are passive, you leverage other people's time and can have many irons in the fire at the same time even though you have to do things sometimes = more money
If you are a gambler, you put forth no effort so you unwittingly give your money to others = no money