Be sure to buy organic versions of the 'dirty dozen:' the fruits and vegetables that, when grown conventionally, are loaded with pesticides and chemicals: Grapes, apples, lettuce, bell peppers, carrots, nectarines, peaches, strawberries, pears, kale, and celery.
Professional services industries like finance, consulting, and legal services are, by definition, meta-industries. That is, they serve to help large companies raise money, buy and sell each other, reorganize, implement new systems, conduct complex transactions, and so forth.