Do not let people gaslight you into thinking that duality does not exist. You can be grateful and annoyed. You can want more and be grateful for what you have. You can be angry and frustrated and still be grateful. A lot of religious and spiritual gaslighting out here.
Different salaries should only affect how luxurious your life is, not your food quality or ability to afford rent. If you work 40 hours at any job, your income should be enough to live in the town you work in. Thinking otherwise is an abysmal indicator of your humanity.