If the key is solid, and it's going in diagonally, it physically cannot lean unless the key cracks or the key hole is too large. I just don't see this leaning. The weight is also balanced in the photos. Any leaning would be so minimal we're talking millimeters here.
Are people genuinely that concerned?
Gambit isn't leaning, Magneto Maquette isn't leaning, X-23 isn't leaning, same with brimstone Thor...Rogue was leaning a bit but eventually stupid because the key physically stops it from leaning any further. I don't get the concern over this one...