It is not necessary and we have the tech to do better. Check out the scam our government has going in regards to classifying any "disruptive" technology. There are many, many incidences of well publicized, well documented breakthrough technologies that just seem to...disappear. Most would have a disruptive influence on our energy sector.
A professor of physics I am acquainted with told me about HIS mentor's work in anti-gravity in the 1950s. They were making breakthroughs and then...poof. No one is talking about anti-grav anymore. No funding. People who were researching it are doing other research with BIG grants and funding. Some just kind of disappeared. He told me that IF you start publishing about anti-grav now you get a visit from the government.
See my reply #12.