To give the little Indians out there half a chance to avoid you!! See and be seen!
It is also for you to both have time to see them and be able to avoid them. Remember you are equally responsible with every other pilot for avoiding collisions. See if you can find a get-out in the "General Rules for avoiding collisions" when talking about powered aircraft not towing anything based on aircraft type, operation, airspace, met conditions or time of day / night.
There are zero exceptions to the "thou shalt not collide" rule.
Therefore in airspace where ATC are not separating two aircraft the rules of the air apply and one wil have right of way while the other shall avoid it. Just because ATC may have the one required to avoid on a heading does not change the law.