Well, yeah. I guess it is because I am often jumping fields because otherwise it can get confusing when switching context (I am a mechatronics engineer, so a blend of mechanical, electrical, control system, and programming)

Then I suggest using the word more valuable skill than being more skilled. More valuable skill since it implies rarity and not some sort of hierarchy. That's my take anyways from the word "some jobs require more skill".

I disagree. A skill is a skill. Some are more skilled than others IN THE SAME SKILL. You cannot objectively compare a different skill with another. If a skill required to do surgery is "more" than flipping a burger, then being good at surgery means you are magically good at flipping burgers, but that is not the case.