It's not always a naive "the more the better" issue.
Too much resolution can result in unnatural and distracting results -- your eyes don't have that much resolution as when you see a person in 8K in a extreme closeup. It's neither natural not flattering to see an actors individual skin pores, for example.
Similarly, faster frame-rates capture motion more accurately (sharper under motion), but result in a movie that looks distracting and soap-opera-ish to the viewers eyes.