Does being a hero means you're going againts human nature?

I don't think being a hero means you're going against human nature. Sometime I could be but I think it's not every time. So I think that it doesn't matter.

I guess for some aspects, sure. We discussed in class that the aspects of human nature were fear, love, and survival, among others. While I think that heroes should overcome their natural fear for things to get stuff done, but heroes shouldn't go against our nature to love or our nature to survive, because heroes do what they do mainly for love, either love for a friend, love for a significant other, or love for people in general. Also, heroes have to survive and carry on with their heroics because if they go against that then they'd end up like Beowulf: a burnt and mauled ex-hero who left his kingdom and the people he was responsible for defenceless. So I guess heroes should have to overcome fear, and maybe selfishness and desire but not love and survival.

A hero is a person who stands out in society, who people look at in a different view, and for a person to stand out in society, obviously they need to have traits that are not common and human nature are the common human traits, which means that hero are the people who goes against some traits in human nature.

I think that being a hero and helping people out is part of nature and also not part of it. Being selfish and only thinking for yourself while other people are struggling and suffering is part of nature and it goes along with human nature. Apparently, there is some loves and kindnesses inside yourself as well in which you are willing to help people out alike being a hero, it's also part of nature and goes along with human nature as well. However, being a hero can be considered as nurture because being taught to care about people around you and are willing to help them is not human nature.

Being a hero isn't going against human nature because it is their instinct that would lead a person to become a hero. Heroes are just the same thing as bad guys, but the only difference that they have with each other is that the reason of why they are fighting is the opposite from a villain. 

since human nature focuses on the survival of only one individual, i think that a hero must be one who overcomes certain human instincts with his or her own virtues to best serve / help others. For example, Beowulf definitely experienced fear, however his virtues and confidence easily overcame such fear and defeated Grendel to both bring peace to his nation and raise his reputation. However, raising one's reputation counts as greed and desire, which is part of human nature; therefore not all human instincts should be overcame in order to become a hero.

I think this can be a controversial topic, but I think that being a hero does mean that you are going against the instinct to survive. 
I think the defining feature of a hero is the ability to sacrifice oneself's own interests and concepts above others. One should be able to sacrifice the one's own being to save others.Thus, heroes are going against their concept of survival.