[kgwgk]

b : based on or determined by individual preference or convenience rather than by necessity or the intrinsic nature of something

[johnchristopher]

I say "leaving previous employer because the new one paid more" is not an individual preference or convenient but the intrinsic nature of the decision. Maybe even motivated by necessity if more money was needed.

It's not like he chose the new company because the logo is red.

[kgwgk]

Employers rarely fire people for arbitrary reasons, then.

[johnchristopher]

If by arbitrary reasons you mean a not random reason like "they cost too much" then they do it all the time.

[kgwgk]

I'm sorry, I don't understand.

Do you think that "they cost too much" is an "arbitrary" reason? Or is it the "intrinsic nature of the decision" like in the "I leave because they pay me more elsewehere" case?