even the feudal farmers were capitalists
Are you refering to the privileged landowning classes? Or to thier property...the farmers? Or would you also refer to American slaves as capitalists because they calculated to ROI and decided that picking cotton was more profitable then getting hanged?
Oracle seems to be doing good job milking RDBMS which was dying longer than Yahoo was around.
What the hell are you talking about? RDBMS Still run the world. Do you think your bank uses noSql? or hotel reservation systems, or the IRS, or well hell you know everybody everywhere. Just because there are some cases where nosql is useful does not mean relational systems are dying.
One good reason why computers can do more work than people is that they never have to stop and answer the phone.