I don't know what you mean by small jobs but whatever the job is, if it doesn't pay enough to make a decent profit, don't waste your time.
Example, I have two monthly contracts, one in Davis, the other in Sacramento, (fairly close to each other) . I combine the two but charge each as if they were the only client in that area. Also many times I need to pick up supplies in the Sacramento area so it is a win win, all the way around.
I have lost jobs because someone under bid me, and that is understandable and will happen to everyone. I just refuse to work where I can't make a decent profit.
In one sense if someone is expecting to make a living by just doing drone work, well my advice is, don't quite your day job.
One of the companies I contact to is Multivista, reality is a very small part of their work is aerial photography, most of it is ground photography of construction projects.