This is probably the best thing I have heard in a while. Black hat techniques can give quick results but usually end up getting you a penalty of a permanent ban. White hat techniques take a lot more effort but are far more valuable in the long run.
Image if you were an SEO practitioner and conducted black hat techniques on a companies long term established domain and got them banned or penalized - you would lose them thousands!
This is why correct ethical white hat search engine optimization is best for business in the long run.