They are well aware of value to price ratio and choose accordingly.
Yes and in general, they have had to go against public opinion in regards to getting wealthy. Many people told them that their ideas would fail, they did it anyway and succeeded - so why care about the opinions of others?
His earnings did not went up because he won lottery, so he is in fact losing money.
Many fail at this, as they perceive the "value" of something (generally making decisions based on emotions) without considering if it is generative or depletive.
Back in 2017 - there was lots of hype around many ERC20 projects that promised to do this and that - where are most of them now? Well, that is the problem with promiseware.