Yes, proper lighting (fluorescent and halogen) will reveal MANY things that are not visible in normal light. That is why every professional detailer uses them. If you do not have fluorescent lighting or a halogen lamp, direct sunlight is the next best thing. It's hard to say how the scratches in the chrome trim were caused though. It could be your washing habits, caused by the dealership when they prepped your car, etc.
If you want to key a close eye on your true paint condition, pick up a halogen lamp like this. They are typically less than $50.
As an example, here is a customer's 1 week old BMW under a halogen lamp. They thought their paint was in great shape until I showed them what their paint looked like under a halogen lamp. And this was only 1 week old. :wacko:
And after my work was complete under the halogen lamp.