There exists a body of evidence that 'technology' actually contributes to income inequality. See "Schempeterian Growth Theory and the Dynamics of Income Inequality" by Philip Agnion et. al., 2001...delivered at the Walrus Bowley Lecture at the North American meeting of the Econometrics Society in Madison Wisconsin in 1999.
The tortured souls who work with statistics in the questionable belief that evidence for some objective truth can be discerned from ever more complicated regressing sorts of flawed and often fantastically fabricated data sets seem to be accepting that technological benefits accue to those who hold on to them through law, culture and the prudent keeping of secrets.
Wealth accrues to societies who increase thier rate of innovation and develop "Skills Base Technical Change" (SBTC), "as the relative supply of skilled labor increases so does the monopoly rents of an innovation that would be targetted at the skilled intermediate sector, thereby resulting in an increase in the relative productivity in the skilled sector and therefore in an increase in the skill premium" over the unskilled wage.
General Purpose Technology (GTP) driven change, change that effects the entire economic system, is rare...and takes longer than you would think to actually spread out...talking Steam Engine...or most recent example of GTP...Fracking.
Outsize profits accrue to the innovators as well as to the general societal benefit that drives the innovators rent. There are many seconday innovators. It is the rate of the innovation that defines the change in societal 'wealth.' The rate of innovation is impacted by how the society rewards innovation. The reward for innovation is proportional to the expected discounted profits associated with the discovery of new products."
This is what societal growth and increased standard of living is all about...rate of innovation...and such innovation creates income inquality at the same time it advances aggregate social benefits.
If you want a society of general income equality all you have to do is repress all innovation...take away the innovators profit...return to a feudal system on the way back to hunter gatherer...then kill the spear maker.