What incentive does Mel Lastman Square, the ACC, UofT etc have to rename adjacent subway stations? It would seem that the TTC would be asking these venues to pay to rename a subway station out of the goodness of their heart. People aren't that stupid that they can't follow directions to the ACC. It's just a waste of money in my view. And those venues would just use taxpayer money anyways. Aren't street signs pointing to these venues paid by the city? MLSE is notorious for getting taxpayers to pay for things.
If I was going to buy naming rights, it would be to create exposure of my brand, or to associate a brand with a prestigious venue or cultural attraction.
In the case of Ryerson: they are trying hard to get exposure to show it can be a prestigious university, which makes sense in them asking to rename Dundas station. UofT and York are already prestigious, they have no trouble attracting talent - those institutions are more interested in going after alumni for donations or hiring "all-star" researchers.
The reality is companies like Apple, Google, Pepsi, Bell, the Banks, Beer companies etc would be interested in renaming stations. They have the money and want to advertise. Thinking or hoping that public institutions (that are often cash strapped) would be willing to pay for naming rights is naive.