yes and no - it depends on what you're going for.
with a good compressor and quality gear, bass can be really easy.
as for guitar, a 57 pointed at the speaker cone will work fine, but there's lots of other good things that can be done. and those amp simulators out now are getting crazy good, too.
as for Justice - there is 0 bass. None. Nada. Zip.
friends of friends know the band and apparently the track was muted during mixing. Jason would be all 'turn me up!' and they'd push the (muted) fader and reply 'how's that?' funny, but kinda evil, too.