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wonder, which social media definitely made this world a better place?

Hello there :)
Yes, I think so, too, that most / a lot of people intend to make money with being and sharing their information on here - though is it truly a bad thing? Every company wants to sell their product and wants to recieve a "token" of appreciation for it. You can't buy a home and raise a family from a "thank you so much for sharing" - though it would be an ideal place, I think ;)
If you want to share what you love with the world and spend time and energy on doing so, you need a reward for it, that helps you keep going. In older times you paid with other goods (changing /switching), like bread for eggs. Then someone invented money to give a base for switching goods, so that everyone could get what they needed (which is not yet a bad thing). The bank system thing now is a real problem, because it is based on making more from where there is nothing to gain from. They literally try to make money out of thin air, but it has to be somewhere first in an equal value (which is why rich people get richer through interest). This is a system which only serves some people.
Everything in the world has the possibility to make it a better place if used wisely or maybe, used with consciousness. If you spend your money and time (which are the current currencies) on things that make the world a better place, then there will be more of that. So if you buy fair trade and biological stuff in the store, the store owner will think "to make money, I need to get more stuff like this". And if you are on social media or youtube / dtube and spend your attention on things that create good vibes, you will get more and more good vibes overall.
It is actually the choice of each and everyone of us, wether this plattform creates something beautiful or not.
Have a great day! :)