That is always a risk when someone does something in the public interest. But doing stuff for the betterment of others at risk of your own lifestyle is a noble endeavour that many have undertaken despite these reasons.
My point is that others are not bettered by this action, because the action of leaking to a journalist no longer improves anything. Just as it hasn't the last few times this happened. It is arguably a good idea to sacrifice something for everyone's benefit, but it is always a bad idea to sacrifice if nobody benefits.
That is always a risk when someone does something in the public interest. But doing stuff for the betterment of others at risk of your own lifestyle is a noble endeavour that many have undertaken despite these reasons.