Cast a doubt on whether Mohandas Gandhi (or even Mother Teresa and Cory Aquino) is in heaven, enjoying eternal bliss in the presence of Christ, and more often than not, you will be met with fierce antagonism from those who do not properly comprehend the biblical doctrine of Total Depravity—because these people were just...so good.
Calvin offers us a timely reminder that it is only by God's restraining providence, through common grace, that not every one of us are as evil and barbaric as our totally depraved natures provide potential for us to be, and that ultimately, it is not our goodness that saves us but the goodness of the One who lived and died in the place of the elect:
Here, again we are met with a question very much the same as that which was previously solved. In every age there have been some who, under the guidance of nature, were all their lives devoted to virtue. It is of no consequence, that many blots may be detected in their conduct; by the mere study of virtue, they evinced that there was somewhat of purity in their nature. The value which virtues of this kind have in the sight of God will be considered more fully when we treat of the merit of works. Meanwhile however, it will be proper to consider it in this place also, in so far as necessary for the exposition of the subject in hand. Such examples, then, seem to warn us against supposing that the nature of man is utterly vicious, since, under its guidance, some have not only excelled in illustrious deeds, but conducted themselves most honourably through the whole course of their lives. But we ought to consider, that, notwithstanding of the corruption of our nature, there is some room for divine grace, such grace as, without purifying it, may lay it under internal restraint. For, did the Lord let every mind loose to wanton in its lusts, doubtless there is not a man who would not show that his nature is capable of all the crimes with which Paul charges it, (Rom 3 compared with Psa 14: 3, &c). What? Can you exempt yourself from the number of those whose feet are swift to shed blood; whose hands are foul with rapine and murder; whose throats are like open sepulchres; whose tongues are deceitful; whose lips are venomous; whose actions are useless, unjust, rotten, deadly; whose soul is without God; whose inward parts are full of wickedness; whose eyes are on the watch for deception; whose minds are prepared for insult; whose every part, in short, is framed for endless deeds of wickedness? If every soul is capable of such abominations, (and the Apostle declares this boldly) it is surely easy to see what the result would be, if the Lord were to permit human passion to follow its bent. No ravenous beast would rush so furiously, no stream, however rapid and violent, so impetuously burst its banks. In the elect, God cures these diseases in the mode which will shortly be explained; in others, he only lays them under such restraint as may prevent them from breaking forth to a degree incompatible with the preservation of the established order of things. Hence, how much soever men may disguise their impurity, some are restrained only by shame, others by a fear of the laws, from breaking out into many kinds of wickedness. Some aspire to an honest life, as deeming it most conducive to their interest, while others are raised above the vulgar lot, that, by the dignity of their station, they may keep inferiors to their duty. Thus God, by his providence, curbs the perverseness of nature, preventing it from breaking forth into action, yet without rendering it inwardly pure. (Institutes, 2.3.3)