Another series of laws aimed at securing the purity of an electorate exposed to the danger of corruption by the overwhelming influence of wealth. Laws against bribery, unknown in an earlier period,[93] become painfully frequent from the date at which Rome came into contact with the riches of the East. Six years after the close of the great Asiatic campaign the people were asked, on the authority of the senate, to sanction more than one act which was directed against the undue influence exercised at elections;[94] in 166 fresh scandals called for the consideration of the Council of State;[95] and the year 159 saw the birth of another enactment.[96] Yet the capital penalty, which seems to have been the consequence of the transgression of at least one of these laws,[97] did not deter candidates from staking their citizenship on their success. The still-surviving custom of clientship made the object of largesses difficult to establish, and the secrecy of the ballot, which had been introduced for elections in 139, made it impossible to prove that the suspicious gift had been effective and thus to construct a convincing case against the donor. The moral control exercised by the magistrate and the sumptuary or criminal ordinances expressed in acts of Parliament might serve as temporary palliatives to certain pronounced evils of the moment; but they were powerless to check the extravagance of an expenditure which was sanctioned by custom and in some respects actually enforced by law. One of the greatest of the practical needs of the new Roman was to increase his income in every way that might be deemed legitimate by a society which, even in its best days, had never been overscrupulous in its exploitation of the poor and had been wont to illustrate the sanctity of contract by visible examples of grinding oppression. The nature and intensity of the race for wealth differed with the needs of the anxious spendthrift; and in respect both to needs and to means of satisfaction the upper middle class was in a far more favourable position than its noble governors. It could spend its unfettered energies in the pursuit of the profits which might be derived from public contracts, trade, banking and money-lending, while it was not forced to submit to the drain created by the canvass for office and the exorbitant demands made by the electorate on the pecuniary resources of the candidate. The brilliancy of the life of the mercantile class, with its careless luxury and easy indifference to expenditure, set a standard for the nobility which was at once galling and degrading. They were induced to apply the measure of wealth even to members of their own order, and regarded it as inevitable that any one of their peers, whose patrimony had dwindled, should fill but a subordinate place both in politics and society;[98] while the means which they were sometimes forced to adopt in order to vie with the wealth of the successful