Most often than not, people tend to portray lust as a very dangerous, derogatory, unwanted, unneeded and unpleasant factor. Especially relating to Humans.
In my view, lust is the most misunderstood and misrepresented term and only defined from the view of sexual desires within the confines of physical pleasure. Little does anyone acknowledge that without lust this world wouldn't even grow. Let's try dissecting my statement. If lust is something that attracts opposite genders physically, that's a bee does to a flower, which creates pollination turning a flower into a fruit and in turn giving us seeds to have more trees! Likewise, a male-female attraction is what allowed to world to blossom into what it is now! And that attraction was fair and square because of lust, how can that be scary than being sacred!
Not sure how and when every culture started disrespecting lust. But in tamil literature, to be very specific our own Thiruvalluvar defines all of his kurals under categories. அறத்துப்பால் (pronounced as Arathupaal meaning Morality), பொருட்பால் (pronounced as porutpaal meaning Material), காமத்துப்பால் (pronounced as Kaamathupaal meaning desires and Kaamam alone translates to lust); 3rd one being what we are speaking about. If Valluvar defined it as one of the main elements/pillars of your life, it has to be important. After all, all of tamil literature references back to Thirukkural!
Over the course of time, Lust from being one important element of life to, being the most dangerous element, I think, the humans made it into that!
So in all, my perspective, Lust is like every other emotion, feeling and also the most basic instinct that any living being has. There should be no shame in admitting to that!