Re: patents = profits
if you are a "man/woman in a garage" type inventor who wants to build a business from a good idea then the patent system is the way to protect your idea. If you don't protect it then a huge company will just copy you and you'll end up bust before you've even started
If you are a man/woman in a garage (and I'm more of a shed fan, myself) and you patent something of interest to a big, powerful and rapacious company, you're not in a strong situation. Your best bet is to sell up to that company or its competitors, and hope you get a decent amount of money out of the transaction. The alternatives are either a) company steals your idea because they know they can use their legal team to reduce you to a smoking crater in the ground, or b) patent a whole bunch of things which are very closely related to your own idea, and which prevent any practical realisations of your idea ever being made. They can then offer you a pittance for your own patent, which has now been almost totally devalued.
Oh yeah, c) a Chinese company blatantly copies your idea because they know you haven't got any means to stop them. But that would imply that your idea has mass market appeal, which is pretty unusual. Of course, it is quite possible that your idea is not valuable enough to steal or license, in which case you're probably okay, but down a few thousand in patent application and attorney fees. Awesome.