One could appropriate the religious word messiah, not giving it a capital letter.
It's obviously derived from the Messiah (capital M), but has become genericised:
A leader regarded as the saviour of a particular country, group, or cause:
‘the club's supporters have been tempted to regard him as a messiah rather than a manager’
OED has a similar definition, following 1 which is the capital-letter proper noun:
2. In extended use (now usu. in form messiah): an actual or expected liberator or saviour of an oppressed people, country, etc.; a zealous leader of any cause or enterprise.
Their first citation for this use was by Dryden in 1667, where he used a capital letter as was customary at the time for many nouns.
1667 Dryden Annus Mirabilis 1666 cxiv. 29 The wily Dutch, who, like fall'n Angels, fear'd This new Messiah's coming.