Too many people think they can give good advice long after their attention span has either become bored, or frustrated with trying to HELP another human being. Why do they try to stretch themselves too far for another's benefit? Is it the general good will within them?, Or need to be validated as a person with an opinion that counts? Your opinion is worth the 10 points.. I won't give this "Q" up to the general audience.
Yes I believe you are capable of giving a good answer for myriad reasons
Here are 2
First I think your opinion on a subject and the advise you are likely to render are decided LONG before you become bored or frustrated with trying to help. Therefor once you actually get the chance to help you will likely render the advise as you would under other circumstances.
Secondly if the first case is not true then it could be that your subconscious is that which is giving the advise (only in extreme cases like if you are REALLY TIRED) Here is where I have personal experience.
I am what is known as a somnambulant. That means I walk+talk in my sleep. When you are unconscious. Your SUBCONSCIOUS mind is in control. The subconscious is not only very protective but also very perceptive more so than the conscious mind. It also does not have a tendency to get bored. It will take the information being fed to it taking in factors like the tone of voice of the person seeking advice their nervousness many of the subtleties that the conscious brain would filter out. It will process all the information given and will often render better advice on the situation than you would have done if you were fully conscious.
I have had this happen to me on several occasions. The phone rings. I'm asleep. I answer the phone anyway. A friend tells me the problem. I tell them what they should do. They call me up the next day and tell me they did as I suggested and things went much better than they could have hoped. I ask them what advice? Say ??? You don't remember??? We were on the phone last night for like 3 hours talking about it. I say. Haven't got a clue what you're talking about. They say well thanx anyway. I say your welcome. Simple as that.
There is a book called the power of the subconscious mind. Maybe try reading it.
As for the rest of your questions. Why do we stretch ourselves for others is there general good will within them? Well I don't really know how to answer that but by saying. It could just be that thats how most of us were created. Or it could be a factor of the moral values instilled in us as we were brought up. I have a tendency to agree with this last one given that they stopped teaching moral values in school (this is right and this is wrong!) And children are now taught whatever you feel, is right. Its no wonder children are more violent, rude, immoral, and well a lot of other things these days.