What are aerodynamics benefits of using unloaded wingtips (zero lift)? does unloaded wingtip make inner parts of wing more efficient?

(I know that unloaded wingtip reduces bending moment,so structural weight can be  lower, thus reduction in L/D and higher net wing lift (lift minus wing weight), but you can connect wingtip with wire and use elliptical distribution..so..)


[![enter image description here][1]][1]


  [1]: https://i.sstatic.net/dHi2D.jpg