I disagree. USNews at least attempts to gather info on factors that directly affect or reflect the quality of undergraduate education. Salaries… don’t.
It can be improved, but USNews’ formula is a lot more comprehensive and valid than looking at salaries that are largely self-selected. If salaries are going to be included, they need to be compared by major and with standard of living taken into account. And even then, stats can’t fully account for human taste/choice. Maybe a better career-related measure would be a career satisfaction survey. Are you happy with your career? (something like that…)