Because most people think only about their everyday needs and pleasures. They invest only in their daily needs and pleasure.
And dreamers like Howard Hughes have long been exiled among investors.
Perhaps due to the presence of common sense among investors?
God grant memory, in my opinion, Clark formulated and proved the theorem according to which a less technologically advanced civilization can find a more technologically advanced one if and only if if a more technologically advanced civilization wants it. It follows that it does not matter at all whether we will make efforts to search for extraterrestrial civilizations or not. We need to develop our technological level to be able to detect them. Those. at least first fly to other planets.
Well, or they themselves want to show up, but in this case the presence or absence of a program like NETWORK will not affect this process at all.
Sorry, but where did you get the idea that so little money is invested in research?
In fact, there are many organizations, including NASA, that are looking for alien life, but in principle the likelihood that we are alone in a universe that is constantly expanding is very small.