I would prefer something briefer and neater, but I can't think of a way of capturing the distinction between "con" and "para" accurately, in a natural, fluent way, without using more words than the Spanish; in particular, I can't seem to make it work to my satisfaction with the verb "legislate". Perhaps someone will think of a better solution. "Para las tripas", in particular, is not easy to render, I think; I believe it means "para las tripas del público": to satisfy people's unthinking, emotional demands.

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Note added at 3 hrs (2018-06-08 11:00:22 GMT)
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It is very tempting just to put "legislating from and for gut instinct/reactions" — it would be much punchier; but I've said it to myself repeatedly and I just don't feel that "for" works. Perhaps others will disagree.

"Legislating from and to satisfy gut instinct" might be better from that point of view, but it sounds pretty forced to me. On balance, I still prefer to satisfy the lapidary style for the sake of making the meaning clearer.

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Note added at 5 hrs (2018-06-08 12:43:01 GMT)
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Typo in last line: "to sacrifice the lapidary style".