Self respect, similarly to respect from others, must be earned
Achieving great wealth or high position, in themselves, are not justification for self respect. They do not preclude self respect, but they are irrelevant; what matters is what the person did along the way, whether it was deserving of respect, or whether it was despicable. Certainly Australia's billionaires Gina Rinehart and Clive Palmer, who made their money by mining coal and obstructed action to reduce greenhouse emissions, could not justify holding any respect for themselves (nor do they deserve any respect from others).
climate change denying media commentator
Andrew Bolt and Australia's corrupt Prime Minister
Scott Morrison and Energy Minister
Angus Taylor could not justifiably have any self respect.
Similarly, no politician of any of the major parties who does not cross the floor to vote according to his or her conscience could not justify any self respect.
With what is known about climate change and related problems at the time of writing (2020) a person working in the coal industry could no more justify self respect than someone working in the tobacco industry or even the child pornography industry.