Some suggestions for balancing:
make "nothing notable" more common.
make it impossible for the minimum requirement is more than the safety minimum and vice versa
make it so that the minimum safety level/output requirement
make cheaper versions of the buttons, for example a "software upgrade" which increases safety, and is cheaper than the "improve protocol"
there is also a lot of misspellings; rase should be raise, noting should be nothing, addtional should be additional, saftey should be safety, and sheleding should be shielding.