Apollo remembered that Vicar was wanting to change. However, there probably wasn't much to change if he kept staying here.
...And more importantly, if Vicar decided to leave, he shouldn't care too much if the colossus were killed.
Apollo remembered that the talisman would teleport the user quite far away, so maybe that could be useful to Vicar. It was definitely quite the expensive gift when it was just to teleport someone away, but it was a gift Apollo was willing to give.
And so, Apollo spent a thousand gold coins to purchase the golden talisman labeled escape. Many people who at least somewhat understood the value of the golden talisman or even just the golden talisman would call Apollo insane.
After all, it's not like Vicar couldn't just choose a direction to go, leaving that way.
But that was his decision.