Is drinking immoral? is driving immoral?

Lying is always immoral as it implies that you are acting against your own knowledge for the purpose of influencing others decisions. If you do it out of personal reasons it's even more immoral.

blackmail is immoral too, it's not a case of selling information to the highest bidder.

Whistle blowing is considered ethical because;
1. there is no personal gain, other than possible gratification to the whistle-blower.
2. The injustice / breach of contract he does to ones he blows about, is less than the injustice he exposes to public.