It depends whether you are just talking about COINS or if you're talking about tokenss too. A lot of ICOs are scams but many have a legit project that can help the world evolve. ETH is for me a real project that helps many projects thanks to their platform. Other tokens like Stratis, Atlant are also legit projects that will help the world change for the better. All you have to do is really read the whitpaper and ask them questions on slack or telegraph