Iconoclastic:
If you describe someone or their words or ideas as iconoclastic, you mean that they contradict established beliefs. [Collins English Dictionary]
Noted in “Scientist behind Sweden’s covid-19 strategy suggests it allowed too many deaths,” Michael Birnbaum, WaPo:
A gruff, self-confident scientist with a mop of graying hair and an ever-present paper coffee cup in his hand, Tegnell has become an object of fascination both inside Sweden and abroad with his iconoclastic approach to the crisis. He shot down other countries’ attempts to close down their societies as a needless overreaction. He was so dismissive of Italy’s approach that he twice drew a reprimand from the Italian ambassador in Stockholm. He reported to police that he and his family have received death threats by phone, email and on social media.