In a medium bowl, gently combine the salmon, bread crumbs, egg, cilantro, cumin, and 2 tablespoons of the mayonnaise until combined. Shape mixture into 4 patties, each about 1-inch thick.
In a small bowl, add the sesame oil and wasabi paste to the remaining 1/4 cup mayonnaise and mix well. Set aside.
Heat the olive oil in a large skillet over medium heat. Add the salmon cakes and cook until golden brown and cooked through, 3 to 5 minutes per side.
Serve the cakes with sesame-wasabi cream spooned over the top (1 tablespoon per salmon cake).