Suffers from the basic problem that data is only useful in that it can make a case for certain policies on the premise that certain values - such as compassion - are important. But without a set of values one has before looking at the data, then the premise of Rationalia is ridiculous.
This. Also, most of the time it's impossible to get definitive evidence on a problem before it becomes impossibly bad, and it is necessary to act on incomplete proof. Opposition & special interests could use this to sabotage the government - like with climate change action IRL, but worse and for everything.