Ambitions project that aims to solve major problem; - sometimes a problem that we may not even face in the near future...
Honestly, many of these projects that are trying to solve in reality, there's no need for them to solve it as there's no problem or there's already a solution on it that has been made by bitcoin.
There's no need for them to make a project that deals with those specific problems because what they did is just trying to make a profit out of it while they think that people are foolish enough to believe what they say.
Kind of harsh reality but that's it, if there are no investors that are only giving attention to those projects through marketing and good words at the beginning then there won't be new generation of projects that's no use at all.