For it doesn't matter whether a person is carving a "god" out of wood so that he can physically touch him - or whether he is insisting that God shall not be greater than his own ability to comprehend Him or manipulate Him - it is idolatry rooted in pride.
Because we can only "see" through our own eyes, we tend to think we are important or worse, the center of the universe.
But truly, it is estimated there have been 100 billion humans on this planet. That would make any one person equivalent to a single drop of water in an Olympic sized swimming pool.
To me, myself (channelling Obama here), what makes Aquinas's thought great is that it spurs one to awe because while it explains, it does not "explain away." Instead one is left spurred to greater devotion to greater wonder and deeper love of what "passeth all understanding," of Him who understands us and whom we cannot understand.