If your job involves sitting about drinking coffee and chatting on the radio you probably don't need to be as fit as the bloke who runs about with a bergan on and digs holes for amusement or indeed the chap who may normally sit in an airconditioned office until the driver parks it in the wrong place and who then has to do the running about thing.....
ergo: If you are fit enough to do your job, great, if not, you will be found out most probably at a really bad time and will have let your mates down.
ps it's amazing what a fat kn@cker can do when scared witless!
So in summary.. oh I just can't be bothered.
There are some things in life that don't really matter, most things don't matter at all!