Today's digital slot machines and poker screens in casinos and at online gambling sites are capable of amassing a wealth of behavioral data on individual players, and they are on the verge of altering game play on the fly. (scientificamerican.com)
So, stay away from using credit cards unless you really need to do so, you are only making the banks amass wealth in a compounded manner. (blog.roboadviso.com)
Both Crassus and Ceasar went that route, though Ceasar admittedly amassed his wealth by conquering people and not typical enterpreneurship:) (politics.stackexchange.com)