Quality of life has increased because of technological advancements.

To say that we shouldn't care about the growing wealth gap because the world has smart phones is disingenuous.

I care little for how much X has compared to Y. I do not see any use for the comparison, other than for media headlines. I'd say that singling out smartphones is disingenuous. The advancement of every industry has caused the lives of almost everyone to increase dramatically, the advancement has also created a lot of wealth, which is also the byproduct of an increase in industry. I've yet to see anyone explain empirically why it's bad that x has more wealth than y. I'm open to being swayed by data.