So if you have no belief but have strong convictions (a form of faith that is), whatever they are, and do a 1000 good deeds, then you demonstrate that you walk the talk while the religious folks don’t.
So perhaps we need to examine this idea a little more closely. No belief I assume is no official commitment to God or attendance in some organized religion. But one doesn't act with conviction on atheism. So if one literal has no belief in God, the resulting worldview must delete objective moral values and duties. Objective good and evil disappear as well. So what is the basis of "strong conviction to live a certain way."
Do we have immaterial souls that originate and contain thoughts and convictions? Not on atheism!
Do we have free will which enables us to act on our soulish convictions? Not on atheism! Dawkins, Dennett,
Hitchens, Harris, Krause, Atkins, all agree that on atheism, human free will is just a function of biology, physics acting on precursor brain states.
On no belief, we lose our ability to love one another in a selfless way (because it requires thought and objective moral values eliminated by atheism, it requires free will eliminated by atheism).
So when we talk about hypocrisy, that is to say, living in a way that is inconsistent with one's core beliefs, the non-believer has a real problem the minute they start to live the so-called "life of conviction," described in the post.
Of course, hypocrisy is a universal problem.
We see doctors who are hypocrites but no one argues that we should therefore give up on medicine.
We have lawyers who are hypocrites but no one argues that we should therefore give up on the law.
Police who commit crimes,
Politicians who use their power to benefit their sons and brother
I heard of a socialist who had his wife create a media company to run ads so that they could become rich capitalists all the while complaining about capitalism (shoot there is an entire political party committed to this approach lately), yet no one suggests we should get rid of politics.
Why does anyone accept that hypocrisy in Christianity therefore means one should reject Christianity?