Do you seriously believe that if it wasn't Apple, it wouldn't be someone else? That's the epitome of naive.
The fact that they happen to currently be the biggest and baddest on the block means this shouldn't surprise you. Microsoft had its own form of evil, usually just stealing an idea from someone else and getting it to market first. That Apple uses a legal (if marginally unethical) method to do the same thing shouldn't even raise an eyebrow.
Apple is a company. They're in it for the money. Stop treating them like a person and this is all perfectly logical. HTC is a direct competitor. Why would Apple not do everything in its power to hinder or stop them from being a competitor?