There are attractiveness signifiers that are not culturally mediated (e.g. clear healthy skin is valued everywhere, extreme obesity or thinness is very rarely valued, being very short is very rarely valued, etc.)
Intelligence also seems to have plenty of culture-independent aspects.
> Being judged attractive is a cultural thing that varies with time and place.
This is partially true, but there are many significant markers of attractiveness that are not particularly context-dependent.
> Being judged intelligent is also a cultural thing that varies with time and place.
This I disagree with much more strongly. "Being judged intelligent" isn't explicitly isn't the only thing that feeds into the evolutionary drive, and the second-order consequences are much more significant: being quick-witted/funny, increasing likelihood of success/resources, etc. The concept of general intelligence is not nearly as narrowly-defined as you're implying. To take an example, subsistence farming isn't exactly _easy_. General intelligence is an important factor in success at subsistence farming just as it is in success at post-industrial white-collar work.
Being judged intelligent is also a cultural thing that varies with time and place.
Unless your culture is static for 20+ generations, don't expect much influence of it on evolution.