Why should Ruby, Git and a bunch of other tools be in the default installation? If you are a developer installing it is easy enough. If I want a minimum dev env

Why should Ruby, Git and a bunch of other tools be in the default installation? If you are a developer installing it is easy enough. If I want a minimum dev environment, I don't want to go around searching and uninstalling a bunch of packages. Convenience to development should be measured by how easy it is to install/access development tools when you need them -- such as how well the package manager work, not how much stuff the base system come with.