Nietzsche isn't simply mocking heaven or piety here—he's making a sharper claim about what we actually value. The "interesting people" he means are those who questioned, struggled, created against the grain, suffered productively. A struggling artist in her cramped studio, arguing with her work and her doubts, possesses more of what makes life worth examining than a hypothetical state of perfect peace. He's suggesting that virtue without friction, without the friction of resistance and doubt, becomes invisible to us—we stop recognizing it as valuable at all.