May be you can consider the moral side of what you are doing, if you care.
This makes me really sad. People say, they care about privacy - theirs and others'. But they are okay making money investing for the same.
You know what would do good in the world? Invest in evil companies and use the profits to fund advocacy against what they are doing. Turn their success against them.
But if you refuse to invest in companies you don't like, it makes no difference to them at all.
Buying stock increases demand, thus increasing the price of a stock unit. That, in turn, benefits those who own it (which I'm guessing is primarily the CEO and the shareholders)