I don't suppose there's any point in noting for the umpteenth time that the world wide web has its origins in CERN? With particle physicists wishing to find a more efficient way to share data across the world, and realising that everyone else could use it as well? To moan about physicists never doing anything useful, to pick a random example.
It's probably true that little of benefit is going to come directly from a better understanding of very high energy particle interactions. Of necessity the only way to exploit these is to build massive particle accelerators and it's almost certain that there's no way to downscale that, and even if you could then a particle lasting 10^-18 seconds isn't going to be much use allowing you to watch football better. But there are all the indirect benefits that come with it. Including the microwave, as an example, which have its origins in an accidental discovery at a particle accelerator experiment. Or the aforementioned worldwide Web. Or the development of highly efficient superconductors/ magnets/ refrigeration technology, all of which is essential to the inner working of the LHC but will undoubtedly have impact elsewhere. Or the massive amounts of computing power required, forcing us to develop better computers and more sophisticated alogrithmms for dealing with data. Or the mathematical techniques being developed to explain what's going on but turn out to have applications in other fields. Recently String Theory, a much-derided attempt to describe everything in the Universe, is being used to investigate properties of metals and other materials. Again, that is almost certain to have real-world consequences. The list of knock-on benefits is extensive.