>Aquinas reconciled some Aristotelian and Neoplatonic views with the Catholic Church

I wonder if you might be mistaking Aquinas for Augustine? Augustine introduced huge amounts of Neoplatonism into Christianity very early---little more than a century after the original Neoplatonist, Plotinus himself. It's also worth noting that Plotinus was a disciple of the mysterious Ammonius Saccas, one of whose other disciples was none other than Origen, a very influential early Christian writer (albeit later considered a heretic).