Anyone can be an investor, rich or not doesn't mean much, agreed the rich have better opportunity to invest in any company they chose to invest on because of their huge capital, but there are opportunities for none rich people too, all you need is know the right place to invest on.
Rich or not means a lot
It even rhymes!The rich can invest more without fear which means they don't suffer such a big loss, they aren't scared and can sleep well, they buy a larger piece so they make more money when it goes up.
It's much harder to become poor when you're rich than rich when you're poor.
You're right that we all can invest but don't say that it doesn't matter how much money we have because it does.
Rich people can really afford to lose their money with no worries, that is their advantage, and they never afraid to try again if they failed to succeed on their first try. May some will think that poor people can also do business if they want to, yeah, they can but the challenge is that it really needs patient for their business to grow because of their capital which is a big factor that could affect the result of their business. But, rich people can start with a huge amount and they can make a huge profit then, and it is too far for poor people to do that which is really true that good business is only for rich people.