It is just that sometimes, from the way we talk about the past and the amount of time we spend analysing it, Our actions are almost reaction of past experiences.Should you intervene or leave well alone? Though many choices demand careful consideration, they all touch upon this fundamental dilemma. In making a contribution, we effectively compromise our ability to stay separate from the situation. When we belong to a 'side', even if we might have been seen as neutral.
 You have to ask how much a situation means to you and what will be the cost of maintaining an air of indifference? And what will be the psychological cost? That question should soon answer itself