Facebook's stock value is dictated/grounded by a relative amount of real value they've captured (along with predictable future potential), e.g. value they're already providing.
Also Facebook makes real world revenue and profit. Almost no blockchain startup has, or even builds, or even plans to build, a product, and almost all of their declared products are at the very least, impossible due to network scalability limits, or for the most part, even ridiculous by themselves. Plain fakes, exist only as words.
The credibility of their business to generate future profits as decided upon by investors who investigate their markets, the credibility of their team and execs, etc. etc..
Most ICOs are done because those companies would not stand a chance at raising actual money - by people doing real due diligence.
Doing an ICO is in fact, a pretty string signal that there is something not good about the situation.
In Kik's case, well, they have maybe 3 million daily actives, and it's slowly dying, nearly zero revenues. Can't do an IPO. Should make you wonder about putting money into a currency that is dependent on their 'ecosystem'.