Also regarding how the Germans might have viewed their colonial subjects. it might be helpful to review the Herero Rebellions and the Maji-Maji Rebellions.
It might also be helpful to re-look Eugene Fishers experiments during this time. For what its worth, the pot calling the kettle black? The British felt the Germans inept in its scramble for Colonial Empire but very effective at its Colonial Administration. I AM NOT agreeing or disagreeing, just offering fodder for you to work with. ))