The Guardian is fairly protected from commercial influence but its not that well protected against elitism, which unfortunately still means a lot in the UK today.
This is why the Guardian is simultaneously "progressive", yet also at times openly hostile to the working class. Its "progressive but not working class" stance promotes identity politics, and probably does more to pit left-wing voters against each other than any other UK-publication.
That said, I am a subscribe to the Guardian Weekly which I supplement with the Spectator, a traditionally conservative publication, in order to get a decent balance of UK news.