The equation that ICO marketers use is simple: ROI/time=profitability.
There are many who have made a lot of money in crypto, and many more will make a lot of money as well. The next phase of this is commercialization, where the term ICO is familiar but exciting.
Long term wealth accumulation is what a day job is for. Instant wealth accumulation are subject to the formula above, and usually have the interest of the initiators for as long as they are still making the most amount of money with the smallest investment of time.