As always, there is a thin line between cheating and being ethical.
You know... marketing by itself is not unethical, though when you use tricks to induce people to buy something even though you know it's not good for them, the line is crossed. Like when a large fast food restaurant starts giving toys away if you buy their food... inducing children to annoy their parents so they buy unhealthy food just to get the toys. Or when you show sports people smoking a cigarrete, linking the image of smoking with a healthy life.
Of course, if all that matters is making money, then cheating the search engines (or peoples perception, in the case of marketing) is fine.
You know... marketing by itself is not unethical, though when you use tricks to induce people to buy something even though you know it's not good for them, the line is crossed. Like when a large fast food restaurant starts giving toys away if you buy their food... inducing children to annoy their parents so they buy unhealthy food just to get the toys. Or when you show sports people smoking a cigarrete, linking the image of smoking with a healthy life.
Of course, if all that matters is making money, then cheating the search engines (or peoples perception, in the case of marketing) is fine.