NATO is a strategic alliance not based on common culture or values, and Turkey's geographical location makes it a key strategic partner.

This is a sound and solid answer based on the emphasis of OP's post. However, if Turkey has a strategy working against the broader aims of the alliance, a different emphasis of the question is perhaps more suitable.

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Nobody in their right mind in NATO wants to lose a key ally just because they don't like current Turkish leadership.

This touches upon one of the issues raised in the west with Erdogan and is somewhat covered in OP's emphasis. The west doesn't necessarily believe the 'current Turkish leadership' is all that temporary, given Erdogan's efforts to change constitution and embed himself deeper within a self created hierarchical system.