In Proverbs it says spare the rod, spoil the child.
Well not just a child can get spoiled when we leave out correction from life.
It also says... a father that doesn't give rebuke to his child, hates his child.
In other words... even though we may not like doing something because it may bring pain or heart ache, we would do it because it is what is needed and is the best thing to do.
If you were walking towards a huge hole in the ground, would you want me to point it out for you so you wouldn't fall in? That isn't being codie, it is being helpful. Now if you ignore the warning, letting you fall in would be the helpful thing. You would learn from your own mistakes.
Doing what is best for others is doing what the golden rule says.
I would want others doing what is best for me so I should do what is best for them.