Delusions make the human mind that more amazing

[Mozart Link]

Explain how an innocent caring person would end up having negative consequences by having his/her delusions if the delusion is something without morals? I know that even innocent people with delusional beliefs in a God with the morals along with it would do something such as sacrifice others because they thought it was the right thing for God. But if you take away the morals and just have the delusional fantasy alone by itself, I do not see how there would be any negative consequences from it. For example, how would the delusional belief of there being heaven by itself without any morals have negative consequences if this belief is something that just brings this innocent person personal pleasure in life?

Because beliefs don't exist in a vacuum. Beliefs inform your actions, they can affect other beliefs, and can affect how likely you are to change your beliefs. And again, as a member of a community who is affected by the actions of others, I'd like to be as sure as possible that the community in which I am taking part is based on reality, and not some fantasy.

Some cases there are negative consequences, but in some cases beliefs do exist in a vacuum. For example, I am someone who likes to play videogames and if I had the delusional belief that, when I see the fantasy world on my t.v. screen from playing a videogame and conclude that this must be some other dimension and this is something that just brings me personal pleasure, how would that cause negative consequences?