Assuming the real reporting rate is 10 times higher, that is still a 1 in 100,000,000 chance of junk ad if you live in the US
The real rate of people being bothered by your ad is 1,000 - 10,000 times higher than what you're seeing. You think 10% of the people your ads irritate file a complaint? That's ridiculously optimistic.
I'll tell you this; you have far more people turned off by your ad than you have clickthroughs. It may still be justifiable from a business perspective, but don't lie to yourself about it.