Weird people and their Karma
The uncaring kamma will probably affect their life in ways such as problems with their relationships, etc, &amp; also contribute to a bad world, which, if not corrected, will bring a worse world in the future. This is what is waiting for them, namely, hell on earth, either for them; for their family; for their friends; or for their children. As for the hell you seem to be imagining, this is only of the imagination. 

But if you realise the results of kamma are felt within the heart &amp; also manifest in the quality of relationships &amp; the world, then you will understand a lack of care inwardly brings a lack of care outwardly. This present "weird world" you see is itself the result of the kamma of not caring. There is no requirement to "wait" because the results of uncaring kamma have already come to fruition.