Is it permissible for a scholar and a student of knowledge to remain silent about clarifying knowledge that contradicts government directives, fearing dismissal from their position and the appointment of someone worse?

A scholar must be mindful of God's watchful eye and glorify Him. He should not fear anyone in conveying God's message, as confirmed by His saying: "Those who convey the messages of Allah and fear Him and do not fear anyone but Allah." He must also advise rulers, clarify the truth to them, and not obey them in disobedience to God. He must enjoin good and forbid evil, for "The master of martyrs is Hamza ibn Abd al-Muttalib, and a man who stood before an unjust ruler and commanded and forbade him, so he was killed." The best jihad is "a word of truth spoken to an unjust ruler." The scholar must consider the welfare of the religion, consult with people of knowledge, and the public should have a good opinion of scholars. The Sharia is based on bringing about benefits and warding off harms, as indicated by divine texts such as: "except when you are compelled to it," and "But whoever is forced [by necessity], neither desiring [it] nor transgressing [its limit], there is no sin upon him," and "He has not placed upon you in religion any difficulty." Among the derived jurisprudential principles are: "Necessities permit prohibitions," and "Warding off harms takes precedence over bringing about benefits," and "Achieving the higher of two benefits." Moreover, the essence of Sharia revolves around "the obligation to achieve and perfect benefits, and to nullify and minimize harms."