On the other side of the coin (just to give perspective, I'm not suggesting honour societies are bad or detrimental!!) some graduate schools (depending on the country you apply for) and potential academic supervisors might look down on you joining an honour society.
Honour societies or Frats/Sororities as many non-US countries will recognise them might make the automatic assumption that you've joined a 'party house' despite that many honour societies are anything but. This is due to the consistent perception of these societies in various films/newspapers etc as being depicted as such, where academics and education are the least of student's concerns.
It really depends on where you are applying and the program you are applying for. If you decide to apply outside of the US, belonging to a general honour society could (I stress could, doesn't mean it will) be detrimental to your application. In Australia or the UK, or Europe or even Canada to a degree, an honour society does nothing for your graduate school application. It's really only relevant for the US.
Honour societies (from my understanding as a non-US person based in Australia) are great for business opportunities and networking for jobs, but I'm not sure about their potential in helping you do research (which is the point of graduate school).
I think if you'd like to join an honour society, you should join one where academics and/or research are the main priority, but also have a think about where you'd like to go to graduate school.