What does your cat mean to you

So, I'm planning on becoming a doctor. However I can't decide which branch to focus on. Apart from the classical doctor profession, I really like (love almost) animals and I can imagine being a vet as well.

However, I feel like I'm providing much more value if I'm helping a human than an animal.

To see, if this statement is true I would like to ask you, what your cat means to you.

Because understanding the significance of your pet to your life might help me to get over the idea that a doctor for humans is more valuable than a doctor for cats.

Your answer could really help me! Thanks