Stage 1: Create a massively successful app.
Stage 2: Give back
at Stage 1.5: Jolie complains that we aren't doing stage 2.
Well for most of us we aren't at stage 2. Didn't Zuckberg who has just finish stage 1 give 100 million to education?
Didn't Bill Gates, another stage 1 success, get 40 billionaires to give away most of their wealth to charity?
The question arises why don't start at stage 2 first. Well, sequence matter. Think of stage 1 as taking off your clothes and stage 2 as bathing. You do stage 2 first you end up without your skin being washed and wet clothes.
So far there isn't much technology that has been successful in those areas Jolie think start-up should focus, but with the apps you criticize, they have been making loads of money. In terms of risk, it is better to choose the latter type of business and then seek to help solve the other problems with the money generating from the first, same outcome but lower risk.
As Jay-z would say:
"And the music i be makin
I dumb down for my audience
And double my dollars
They criticize me for it
Yet they all yell "Holla"
If skills sold
Truth be told
I'd probably be
Lyricly
Talib Kweli
Truthfully
I wanna rhyme like Common Sense
(But i did five Mil)
I ain't been rhymin like Common since
When your sense got that much in common
And you been hustlin since
Your inception
Fuck perception
Go with what makes sense
Since
I know what i'm up against
We as rappers must decide what's most impor-tant
And i can't help the poor if i'm one of them
So i got rich and gave back
To me that's the win, win"- Moment of Clarity
Paraphrase, if solving homeless problem made money that is what entrepreneurs would be doing, but since it is not they choose problems with lil significant and give back that is the win,win. They are still changing the world but in a different sequence that reduces risk and ensures changing the world is more likely.