If your corps are making your your countries more money then surely that is good, no? Its all under one account ultimately, even if your CEO losses a trillion a year but gains your country 2T then your quids in, no?
Other peoples countries is between you and them, do a tit-for-tat, C3 investment is not really desirable.
In fact...while we are here, I dont see why all the fuss about C3 IFs not buying shares. Lordy, I IPO at chosen times to AVOID C3 purchases, you are just throwing your money away, yes they pay cash for those shares but the dividend each month then is lost in the ether, gone. Buy the shares with your own IFs and, even better, your CEO.
Not long ago players would do everything to avoid C3 share purchasing, dont do it, its bad economics.