You can even invert and distort the example in my last paragraph to the extreme and ask yourself which (A or B) will more likely lead to a better outcome for the ecosphere.

A) You work as a consultant for a company that advises other companies how to save energy in their processes. You make good money and use your ample holiday of 50 days a year travelling the world by flying here and there with your family.

B) You work on an oil rig and recently bought a small house in the outskirts of a small town. You're mostly vegetarian and in your holidays you're either working on renovating the house to be selfsufficient (top insulation, solar panels, electrolyzer, H2-tank, fuel-cell, rain water tank, ...) or you're doing bike trips with a tent.