It’s going to matter at the end. As noted above, pls read for narrative at the moment, not stats – the variables just aren’t in a place to do what they’re meant to do yet, definitely including theustrain.
As a stat, Intellect is centered on book-learning, memory, logic,, knowledge of context, and increasing mastery of the gameworld’s core technology. As I said many, many moons ago:
In addition to making Wards and personally training a mage corps, a player who like @11110 hopes to come up with transformative new ways of solving problems (Theurgic or non-Theurgic) will benefit from a high INT score in later games, as @maroder123 mentioned. This will hopefully help keep up somewhat with the huge advantages an epochally great general or charismatic leader enjoys in forging a new world order.