Motive is crucially important, because it is what drives the action. Unless you understand the motive, you can't understand the purpose of the action. The Devil trumpets his own good deeds. He would do nothing else.
"All the ways of a man are clean in his own sight, But the Lord weighs the motives"
"I, the LORD, search the heart, I test the mind, Even to give to each man according to his ways, According to the results of his deeds"
"He who has clean hands and a pure heart, Who has not lifted up his soul to falsehood, And has not sworn deceitfully. He shall receive a blessing from the LORD And righteousness from the God of his salvation"
To be philantrhropic is to love mankind. Big Brother said he loved you. The Man says he love you. But love is pure and the motive is good and even motiveless. It has no purpose.
How do we know what the real motive of those who wish to "save the planet" and "save the world" is? How do we know that it isn't part of an ulterior motive, that bodes no good to humanity. How do we know that there isn't something "in it for them", how do we know that much of the many may never be used to help people, or even that some of their help may not be help at all?
God knows their motive.