Who to choose

What I learn about various way to invest in a company is that I have to look at certain things. I have to look at the tax returns and how the money they recieve is being used. To see how much of the money is actually helping them and how the rest goes to managment and other materials. I see more value in just seeing how they are useing their money for their cause. I find it difficult because its very hard to decide who needs the money the most. You want to give the money to a charity that needs it the most and that isn't being well supported. Its also hard because many charities have different causes that need money to change an animals life, and we can only choose one.