Both direct representation and proportional representation have their advantages. Direct representation with a sensible electoral system (either two round system or STV) is no worse than proportional representation. While it is true your candidate may lose, but your area still has a representative, who may address some of your concerns, if only they don't stand directly opposed to his agenda. In a proportional system you need to get a political party interested in your plight, which is often difficult if not impossible. In a direct representation you have a person who is paid to do just that, so from the perspective of local politics, direct representation could be superior.
On a national level proportional system appears to have an advantage, although this is not as clear-cut as it may seem at a first glance. While it is true small parties can hope for more seats and that every vote in every election is important this also more readily gives voice and importance to retard parties, such as Syria, AfD, Five star movement and others. In direct representation they will struggle to get anywhere for a long while, it takes substantial shifts in the electorate for them to get anywhere and when it gets that far, they'd become important in the proportional system already.
I'll note again this is only true if the electoral system in direct representation uses either two rounds of voting or single transferable vote (or some other system which accomplishes the same that I'm not aware of). First past the post system makes direct representation an inferior form of democracy.
McHrozni