That is imo because the so called investors are not really investors. If you invest to gain money quick, is not investing, but more like the get " free " money you are referring to.
A real investor knows that it takes time for the public to make the platform grow and then they can make money. A real investor also knows that he / she can lose money.
More important, a Real investor has more interest in having the platform succeed with high quality content and users. That will make a huge profit on the long run.
But what sense does it make if it's only fun for just a few? Users will abandon the platform and even the best idea will fail simply because it lost it's value.
So yes I do like steemit to grow large and not destroyed by those only in it for money. I hope for a good solution.