I see your point
Wireless and from the money point of view the I/R is a very relevant one.
Although I never flew or used my instrument rating in Bots, I do not recall any of my fellow pilot without one. That is not to say you need one to get a job there but only to state a fact, now a few years old (I am not hundred years old though!!!).
Mind yo, if you had asked me if you need a 727 rating to fly one in some parts of Africa, I would defintely have answered: Errr....a Type what ?!?!?. So there we go mate, Africa is a land of opportunities for all of us who are ready to give it a good go. No I/R won't make the job hunt easier but there is always a possibility somewhere. As an indication though, the least they (your future employer) require the more challenging the type of flying is likely to be.
Personally I had a go at dodgy ops (not in Bots by the way) and I came to the conclusion that Thanks but no Thanks.
a2(96),tf(02)