What product types do you have in mind exactly? Even big server chips now use a huge fraction of their area for power-sipping "efficiency core" designs that wouldn't be out of place in a mobile chip. Power is king.
Those efficiency cores would put a full core from just a few years ago to shame, and data center chips have always contained a majority niche focused on throughput and perf/watt over latency. That's nearly always been focused on somewhere closer to the 45° part of the scurve than more on the top.