What is the significance of Caesar’s North Star speech in the Capitol

“I could be well moved if I were as you. if I could pray to move, prayers would move me. but I am as constant as the northern star, of whose true fixed and resting quality there is no fellow in the firmament. the skies are painted with unnumbered sparks; they are all fire, and everyone doth shine; but there’s but one in all doth hold his place.”
these lines comes from Caesar’s speech in act 3, scene 1, just before his assassination. The conspirators have come to Caesar in the senate under the pretence of pleading for amnesty for Metullius’s banished brother, Publius Cimber. Caesar replies that he will adhere his word and not change his earlier decision. Comparing himself to the north star, Caesar boasts his constancy, his commitment to the law, and his refusal waver under any persuasion. This comparison implies more than steadfastness, however: the north star is the star by which sailors have navigated since ancient times, the star that guides them in their voyages, just as Caesar leads the Roman people. so, too, is the north star unique in its fixedness; as the only star that never changes it’s position in the sky, it has “no fellow in the firmament.” Thus, Caesar also implies that he is peerless among Romans. Caesar declares that he alone remains “unassaliable” among men, and his strictness in Publius Cimber’s case illustrates this virtue.