commercial or not commercial?

40 years ago, in the magical year 1968, rock was about rebellion, anti-capitalism and non-conformism. Nowadays, rock seems to have lost its spirit in favour of money and clever marketeers, resulting in mainstream alternative shit on the radio.
This clip has nothing to do with netlabels, but it could have been in those days, when all these bands were unknown and exploring the musical limits with no commercial purpose, but rather freeing the spirits and minds.
31 august 1968, Pink Floyd at Kastival in Kasterlee, and that is in the middle of nowhere in Belgium. Earlier that year, they also passed Leuven on their tour: anyone been there, in the 'Rijschool'?