Where Can We Use C?

Hello so i know what we can do in python,but i don't really know what we can do in C. I see a lot of posts saying that with C and assembly you can "read the hardware" and it is for reverse engineering and exploit writing,but is that only it?I am not interested in those sectors (yet),but is C as effective as C++ in creating malware?I know that you can make malware in any language really. Linux is made out ot C and it is open source so i guess we can change it.Could someone point out what we could do with C in hacking?