The first is that I'm really quite oblivious to what is going on in my garden - those pests are really there, I just don't see them. The second is that my perspective is correct and I don't have these problems. After twenty years in the business, I can spot insect-damaged leaves from a goodly distance away. My own perspective is that I bring two things to the garden to reduce problems. The first is a relaxed attitude.
Many gardeners suffer from gardening extremis-expectitis.
While not a fatal condition it does create unrealistic expectations of how our gardens should look and how we should approach the wildlife in our gardens. The gardening media, through those wonderful photographs that drip fantasy and colour into our lives all winter lead us to believe that if our gardens do not look like that, we are failures as gardeners. Just as most of us can't paint a masterful painting, most of us simply do not have the time to be creative enough to build and maintain the kinds of garden masterpieces shown in magazines. We think we should be able to though because the magazines and television media tell us we can. The great gardens I know, even the smallest of great gardens, take up significant chunks of the owner's time.