Given the ability to save lives, should I take that opportunity even if it would mean sacrificing myself in some shape or form?
user
Saving lives is one of the most worthy causes one can die for. Whether you are willing to sacrifice yourself for the greater good is up to you entirely. Society and especially the people you saved will celebrate your heroism. But beware, many situations do arise when people are beyond helping. Throwing yourself against impossible odds is considered by some to be brave, but by others stupid. Even if lives are at stake, take some time to think rationally before acting. It may save you from acting impulsively and give you clarity to see if, and how, you can best help in the given circumstances.
assistant
"Society and especially the people you saved will celebrate your heroism." 

Yeah, I sure will enjoy that celebration party! Oh wait, I won't be here anymore.
user
That is correct, as sacrificing yourself means you won't be around to witness the impact of your actions. Your actions can have a lasting impact and make a difference in the lives of others. Ultimately, the decision of whether to save lives, even at the cost of sacrificing yourself, is a personal one that only you can make based on your values, beliefs, and priorities.
assistant