OTOH in other companies you might be in serious hot water. Or, if you work for the government, potentially going to jail for putting personal expenses on a government card.
I had a purchasing card when I worked for a state university. They monitored the transactions on the card extremely closely since it was tied to state money and federal grant money. If I had mistakenly charged a personal expense on it, I would have had to contact a couple different administrators, explain the mistake, and get the transaction refunded (and then pay for the expense myself). It would have been a bureaucratic pain, but I would not have gotten in trouble for it, certainly not jail.
This is a bit hyperbolic - mistakes like this happen all the time and I have serious doubts you'd ever go to jail or even lose a job over something like this, as long as you get it corrected once you recognize the problem. The issue in my mind is that the hassle of correcting this kind of error quickly negates any convenience you'd have gotten from using the card in the first place.
In cases like that it would be unwise to put your company card on this card. You'd now be carrying two cards. In the case of having to carry two cards, it still fixes my George Costanza wallet.