In this world, we all clearly need each other, and this also applies to achieving financial success. No one can become rich without the help of others. No matter how great and intelligent a person is, they definitely need the help of others. Because for example, a trader will be in vain if no one buys his merchandise even though the merchandise is very good. Apart from that, a crypto trader will also not be able to carry out activities if, for example, there is no internet signal. So in essence, work that feels like it is done alone certainly cannot be separated from the help of other people. Because as I said above, crypto traders will not be able to do anything if there is no internet signal, meaning that crypto traders really need people who work at operator companies that maintain the stability of the internet network. So if someone says that success can be achieved through one's own hard work and without the help of others, in my opinion that person could be said to be a little arrogant. Because even great people like Elon Musk need the help of other people to achieve the success he has achieved now. So the point is that in this world we need each other, and everyone has an important role for each other.
I would guess that "we need others" is depending on who the others are. If you are talking about someone who could help me when I am trying to be rich, then you are right that I would need people like that, but I would rather be alone than have people who will hurt my progress while I am trying to get richer.
We all know those kind of people, the yare the ones who will tell you not to follow your dreams, they are the people who say you will fail and you will lose it all and you should not take risks and you should just find some common job and do that, they are the people who will never understand what you want to do and just want to stop you and prevent you from your journey.
Those people can't do it themselves, don't have the courage to follow their dreams, so they want nobody around them to have the same thing as well, which is why I think it's quite important to realize that we can be better if we are all alone, instead of having those kind of people around us. That doesn't mean we need nobody, it would be great to have people who are supportive and trust our work and be there for us, if we can find those people that would be even better, I am just saying we need good ones, alone is better than bad ones though.