Being a leader

I must remember if in the future I am a leader of some peoples, I must not immediately shun off my subordinates' suggestion, I must take time to think it through, instead of giving reply like "no it's not workable, it will involve a lot of unnecessary and unproductive discussion on this matter and still at the end nothing can be done", I must say instead "I know your pain going through approval process like this, I will talk to those peoples to revisit the process, no guarantee anything can be done, but I will try". Saying this I will reassure my subordinate that I care about their feeling, and I will always do something.