Most people are mostly products of their culture. It's very possible to rise above it, but it takes work, and you first have to figure out which of the values and attitudes you've already absorbed, from culture and other sources, need to be changed.
This doesn't compel anyone to do anything, but if culture makes a certain behavior the low-energy path, that's worth some blame. Individual responsibility to get out of the low-energy path is a separate concern.
I think 'culture' was, at one point, a convenient label, a shorthand, for very complex phenomena. A label that only had significant meaning at a macro level where individual variables are smoothed out and even then should be suspect as a concept sturdy enough to build other ideas.
It is as if we conveniently labelled something 'x' and then ended up talking about how the angle of the two lines crossing affected the underlying idea we're actually referring to.
This doesn't compel anyone to do anything, but if culture makes a certain behavior the low-energy path, that's worth some blame. Individual responsibility to get out of the low-energy path is a separate concern.