Alcohol is addictive and therefore, while you may not be a burden to others, society (as you put it) at the moment; you are likely to become so by increasing your alcohol intake.
The argument that it is better to die young having 'enjoyed' tabacco or booze than live long with old age ailments my serve to fool yourself in your indulgence. Fact is that habits like these are not only likely to shorten your life but also reduce the quality thereof considerably.
The list of alcohol related health problems is long and distinguished and non of them are 'good fun' to have. One of the most common health problems caused by alcohol is its propensity to cause depression.
And whilst you think your drinking may not be a problem; others around you may well have a different view on that perception and don't forget that people who overuse alcohol are not just affected by the alcohol itsel; when in the withdrawal state they are usually crabby, irritable and generally unpleasant to deal with.
Reality is that most folks who post questions like this one already have 'an issue' and are not likely to be on the brink of just going beyond the maximum suggested limit of 21 or 28 units per week.
Especially if they have discussed it already before and find that
The usual answers are unsatisfactory