For well over 1,500 years, humanity accepted that Earth was the center of the solar system. After all, the Bible — which was the scientific authority at the time — said this was so.
Then along came Nicolaus Copernicus, who in the 16th century dared to challenge the church and mathematically described a solar system with the sun at its center. After his death, Galileo Galilei’s observations of heavenly bodies further supported the Copernican model. The Catholic Church, fearing such a finding undermined the supreme authority of the Bible, charged him with heresy. Galileo would be sentenced to life imprisonment, but was allowed to serve his sentence at home due to his declining health.
So often, institutions that wield incredible power loathe major paradigm shifts that could undermine their authority and ability to monopolize the truth. Informing the masses that everything they’ve been told is wrong, after all, could result in a social upheaval that tears society apart, at least the thinking goes.