[iabacu]

400K to 600K is still qualitatively significant.

For example, it can mean whether your spouse has the option to stay home to spend more quality time with the children, without having to sacrifice expenses due to income reduction; or it can mean how well (or not) you can take care of aging parents.

[ghaff]

Of course. And I don't mean to imply it isn't. $200K is a lot of money to most people and may be enough to make a significant lifestyle choice that wouldn't otherwise be possible.

But in general percentage salary increments affect lifestyle more at the low end than they do at the high end. (And, of course, the absolute differences matter far more at the low end.