Just remind you that being Pure Good isn't ALL about being nice and kind. There's MORE to being Pure Good than just being a nice and kind.
A Pure Good is actually MEANT to do lots of heroic acts like saving others lives, saving the world from big threats, making the world better, helping others get better, show remorse for making mistakes, refusing to kill others unless it's in self-defense, when it's necesscary and with remorse, sacrifice themselves to save others, etc.
Plus, Pure Goods are ALWAYS selfess and they are NEVER selfish whatsoever.
And you need to read all of this on the Heroism Wiki to remind you.
And make sure you always keep the Goodness ad Corrupting Factors separate from each other instead of having them together and always write proposals in your own words and write if a character has any corrupting factors or not.