The word itself explains itself.

As a matter of course, you shall not leave the city; but it is not enough for you to stick to your work in Rome and in the Forum.

You must seek out the voters and canvass them separately; and take care that no one shall ask from another what it is that you want from him.

Let it have been solicited by yourself, and often solicited." Quintus seems to have understood the business well, and the elder brother no doubt profited by the younger brother's care.
It was so they did it at Rome.

That men should have gone through all this in search of plunder and wealth does not strike us as being marvellous, or even out of place.