Ideally, science is apolitical and amoral. The more it compromises those ideals, the greater the loss of credibility and integrity. Global warming deception succeeded because a few scientists and academic journals became political. The scientists participated for a variety of reasons including, funding, career opportunities, and political leanings. The journals were involved, because prestigious scientific publishers apparently chose sensationalism and political bias over balance and objectivity. The transition was gradual, so few realized what was going on.
Fortunately, there were a few people and publications with integrity, not least Sonja Boehmer-Christiansen and the journal Energy and Environment E and E. They published McIntyre and McKitrick’s analysis of the now infamous hockey stick thus incurring the wrath of the CRU gang, who were supported by most academic journals.