There is a common misconception among many that Google will reward you with excellent rankings if they follow Whitehat SEO. It’s simply not true. No one has ever said that if you use Whitehat SEO practices that you would be guaranteed good rankings not even Google said that. But using Whitehat SEO practices guarantee you that you won't be banned from Google's index or penalized or filtered. Blackhat SEO is a short-term strategy. It guarantees that if you are caught your URLs or domain will be filtered, penalized, and in extreme cases banned from Google's search. A simple saying "Don't put all your eggs in one basket" i.e. being totally dependent on Google traffic. There is no guarantee that if you have good rankings, Google will ensure that you enjoy ranking consistency after an Algorithm update. So, if your business is totally dependent on Google better avoid Blackhat SEO. It's Google's index and if you want to use it better learn to play by their rules. If someone can add some additional color, it will be helpful for many.