[sillysaurus3]

To varying degrees. Most people will sacrifice their own happiness for their children's, for example. Or their spouse's, and so on.

Some people have not reached the goal, which is why I asked.

[jraedisch]

Isn't sacrificing their own happiness a little bit like happiness by proxy then? Maybe that's too broad an interpretation. It leads to the (old) question of whether there is true selflessness.